View Full Version : Ford Interceptor marine engine

Glenn Copeland
12-29-2002, 11:10 PM
I have a 1968 289 Interceptor engine in my boat. looking for parts.

12-30-2002, 09:59 AM

Most of the parts will be available as aftermarket items and can be cross referenced to that model or to the individual part number. Having the original part numbers is usually a help when searching for parts. We offer some manuals ("") if you need them.

Manifolds would probably be the hardest part to find for that engine.

What are you looking for?


12-31-2002, 08:28 AM
" Hi,

I am looking for a voltage regulator. The part numbers on mine are unreadable. "

01-05-2003, 07:47 PM
" Try your local NAPA Store. They have an excellent Marine Cat. and given you have the year of engine, they should be able to help you out. Hint: Go to the oldest or most experienced counter guy, as these days the new generation of counter persons cant find wiper blades for your car unless you know year, make , model, engine sive and whether or not it has fuel injection, or a throttle body injection. Kim "

03-05-2004, 07:20 PM
I have manifolds for a 292 or 312 I do not know if they will fit 289 they should be the same small block manifolds but they will not be cheep ill charge 100 dollars less than marine sales and service in clinton twp michigan because I think that guy is a thief. To anyone out there I need a cam shaft new or used for a 312 I am currently rebuilding left turn. I also have horizontal intake manifolds as well as misc timing gears ect. leave a message 248 628 4676

BC Lineberger
03-07-2004, 05:37 PM
I am looking for a 1001358 flywheel or a 1001360 ring gear. Anybody have one?

02-25-2006, 12:44 AM
i have a ford 289 engine. inboard of course i have no idea where to get anything or even look for parts for it. how can i tell what type of engine it is? all i see is ford. 289. v8 single carb? anything else im in the dark? help

02-25-2006, 07:53 AM

Is there a nameplate on the engine?

The plate should say Ford Interceptor. The nameplate should have a serial number, post it here and we can supply some other details."

03-18-2006, 10:35 PM
"Ford 312 Interceptor motor Parts. I have a linebored block, and new heads. Lots of other parts too"

03-19-2006, 09:00 AM

You could post them for sale in our classifieds ("")."

06-21-2006, 02:03 PM
"I am insearch of a Complete Rebuildable Marine Ford 312 Interceptor with offset reduction gear box. If anyone has one or knows of where one might be please email me at [email protected] ("][email protected][/url] or [url=")



06-21-2006, 10:23 PM
A Ford 289 is similar to a 302 and 351. THe 292/ 312 series of engines are ENTIRELY different animals.


07-04-2006, 11:56 AM
"If you have an 312 engine already I can help you with some parts for both the motor and the offset Dearbo transmission. If you look hard, you could find a complete engine on the net, I have seen them. If you do find one and plan on mixing your parts with the located motor be aware that the transmission came in four flavors, The Model A, B, C, and D. The Model A and B have the flywheel housing and transmission case as one piece. The Model A use engine oil and had no dipstick (the dual stage engine oil pump would by-pass engine oil to be used by the transmission which would then be returned to the oil pan. The Model B had a dipstick and used transmission fuild. The pump was part of the engine oil pump but the bottom half was sealed off from the top motor side. The Model C & D were almost the same. They had separate flywheel housing and transmission case and ran on trans fuild. The offset gear half had different gear ratios Make sure you get the correct ratio. If you can post a pictures of your unit I might be able to tell you what you have. It would help if you could get the serial number off the timing chain cover."

Mike Castleman
07-08-2006, 01:18 PM
"I own a 57 Century Arabian. I need an engine and transmission overhaul. The boat has a 185 HP Interceptor engine #ECZ 6015-B. The Transmission has the number 1007-A on the side. May be a Dearborn A model) The transmission is fed from the crank case, no dip stick. Do you know the manufacturer of the transmission? Also, I am located in Austin Texas and need to find someone local (200 mi – Dallas – Houston) that can overhaul the engine and transmission. The engine has been running fine, but there is oil in the exhaust. The transmission is refusing to shift except at higher RPM’s. There is MUCK inside the engine and trans. Also, which manuals can I buy to get the engine and transmission?

Mike Castleman
5221 Scout Island circle
Austin, Texas 78731
[email protected] ("")"

07-10-2006, 04:42 PM
According to your post, I must have a C or D model Dearbo transmission. Though mine is not drop style, it's straight. The question is where can I buy seals, etc? The boat is a 1964 Century resorter 15' with interceptor Ford. Last weekend while in reverse, a bolt holding the coupling to the output shaft on the trans. broke. I would like to replace the output shaft seal and any other seals I can. Source?"

07-11-2006, 10:36 PM
Your engine can be rebuilt by any good engine rebuilder. The engine number you posted is a Ford number not the engine number, which you should find stamped into the timing cover. The main issue they will have is with the oil pump. If the transmission oil side of the pump is bad you could buy two engine oil pumps for the motor and cut down the gears or rotor(Interceptor used both types) to use in your old pump. As per your transmission it was based on a Ford automotive type. Many of the parts are the same. Be sure that the trans shop you take it to uses metal sealing rings and not teflon for the forward piston cylinder cover. The weak part of the trans was this cover. The rings would cut groves in it when the trans was run out of alignment. I may have a cover some where in my gargage. I will look when time allows. Use paper clutch (thats what I call them) plates not bronze. The next problem you mey have is with the shift spool, I do have those if you's is bad. I'll take I look and see if I have any extra manuals. Interceptor made the transmission. I believe they sold everything they had on the transmission to a marine dealer in the Midwest when they started using Warner transmission.

I'll look and see if I can get you some seal numbers. By the way, your engine is a INTERCEPTOR marine engine which used a Ford block. If your transmission has bigger problems then just the bolt you may look at converting to a Warner transmission. In your case it would require little work to covert, unlike Mike who would have to buy a new bell housing, cooler, and a new oil pump for the motor. If you think this is a good option, post that thought and I can make a list of items you would need and what problems to look out for.


07-12-2006, 08:48 AM
Thanks for the info!
I'd rather not convert, as the trans. seems to run fine. Can you post the marine dealer in the midwest that interceptor sold these dearbormatic parts to? Sounds like most of these parts are probobly Ford trans. parts. Is dearbormatic trans service covered in an interceptor marine manual?

Luke R.
08-07-2006, 01:38 PM
i have a 1963 boat w/ an interceptor motor the # is T84L317964can you give me more info and specs on this engine thank you

Doug Crow
09-08-2006, 11:55 AM
"I have a Ford Interceptor Marine Engine, can anyone tell me the specifiations on this??

Number: 31R18270 stamped under interceptor"

10-01-2006, 06:07 PM
"i have an rebuildable 312 intercepter complete with every componet attached to the motor regulator,pump every thing,and a walker transmission,all parts marine all complete"

Bryan Marcom
11-27-2006, 12:25 AM
"I am in need of a water pump for a 312. Mine has missing rubber fins. Anyone know if these are available and if so, where?"

01-25-2007, 12:52 PM
"I am in search of a set of Ford 312 motor mounts that were used in Century's. Here is a picture of what I am looking for. If you need numbers or more pictures please let me know.

Jim Kartz
03-16-2007, 05:55 AM
"If your engine has 165 h.p. sticker on valve cover it is a 260 c.i. Same as mine in a resorter 15&#39;<font color=""ff0000""><font face=""arial&#44;helvetica""></font></font>}"

dave rosson
04-09-2007, 06:39 AM
"Hi,everyone.I recently bought a Dunphy x 55. w/ a 215 hp interceptor.It is complete.looks like nothing missing.I am going to part it out.all i want to keep is the block and heads.you can call me and leave a message for more info.903 875 9501"

Bill Long
07-18-2007, 11:36 AM
Hello everyone. I&#39;m the new proud owner of a 1962 Correct Craft compact Skier. It&#39;s powered with a Ford Interceptor V-8. I see from the original CC brochure that these boats were available new with an 85 h.p. and a 100 h.p. engine. Can anyone tell me how to identify what I have? Is this maybe the Ford 260 cu.in. ? Thanks in advance for any and all information you can give me.

08-23-2007, 09:09 PM
I have a Ford Interceptor with 300 hp on the valve cover. It is in a 66 Century Coronado. the fuel pump developed leaks. A marine operator kitted it. I can&#39;t make the pump work. Is there some secret to getting them going. Do they need prime?

09-10-2007, 11:31 PM
"I have a Dearbo Model A transmission with the off-set gears on the back. It&#39;s slow shifting into reverse. Had a very good Ford-A-Matic guy put in new bearings, clutches and seals. Still had the problem. Had the oil pump surfaces milled to the lowern end of the tolerances. Still slow. By-passed the transmission oil filter to see if it would make a difference. It didn&#39;t. I have a velvet drive, bell housing and cooler but it will reverse the shaft rotation, and I would just as soon keep it as stock as possible. Any suggestions?"

09-14-2007, 05:34 PM
First off what is your oil pressure going into the gear box? Secondly have you adjusted your reverse band according to the specs? If the reverse band is to loose the reverse solenoid piston has to travel further causing a delay, when you say its slow is it a second, two seconds, or what?
A one second delay is not abnormal for shifting into reverse.

What boat is this in? If its in a Century you definetly don&#39;t want to change the prop rotation. The shafts were offset to the rudder to compensate for offset thrust and reversing the rotation would cause for poor turning capabilities to the right."

Martijn van der Geer
10-13-2007, 07:13 AM
"Dear all,

I have a &#39;57 Dearborn
Interceptor Marine Engine 185 HP.Number 75879.
It is the heartbeat of a &#39;57 custom swiss made runabout by Portier.

Of course I am in need of the already mentioned oilpump. Does somebody have such an oilpump or know where to get it?

I live in the Netherlands, I can arrange shipping from anywhere.

Please contact me if you have such an oil pump and want to sell it.

http://www.marineengine.com/discus/messages/12513/115139.jpgPicture Oil Pump

Cliff Heaverne
02-17-2008, 03:47 PM
"Ford Interceptor marine engine &amp; tech manual, 185 HP, &#34;C&#34; model, 10 degree offset transmission reduction gear, Eng. #C22R02216, were in a Century Lapside boat &amp; were disassembled to refurbish hull. Engine was strong when removed. Have all parts, gas tank, controls, drive shaft, prop, motor mounts &amp; everything required for reassembly. Never in salt water. Stored in NV. Will throw in boat at no cost. $4000. Contact CLIFF 775-426-8966 or [email protected] ("")."

neal miller
06-03-2008, 11:44 PM
"I have a 1957 Chris Craft Capri that I am trying to restore. The boat has been in my family since new and early in my life my father which has passed away replaced either or both the transmisson and gear box with another transmission. I have been trying to find the hull numbers to determine what the boat came with new. It currently has a bored 312 with side draft carbs. The motor was remounted and moved several inches forward in to the cokpit and the front of the engine was raised about 6 inches to line up the drive shaft. I would like to find and install the orginal tranmisson and gear box to get the engine back into the engine compartment I will attach a pick of what is currently in the boat. I also need a water punp for the 312

06-04-2008, 06:43 AM

Do you have a water pump that could be rebuilt? if so my dad and I could rebuild it for you as we have rebuilt the 5 for our 312&#39;s and a couple other peoples. As far as your transmission goes I would venture to say it oringinally had an dearborn C class with the offset reduction gear box which allowed for the engine to sit level in the boat &#40;no need for a six inch lift in the front&#41;. These setups are hard to find as most people took them off when they started having problems and started to lose reverse, and most of them got thrown out. &#42;if only they would have changed the oil in them regularly... If you are in search of this dearborn set up with the reduction gear box let me know I think there is a guy in Michigan that has one.

Also if you are going to rebuild your engine and need replacement decals I have them available.


06-04-2008, 03:13 PM
"Steve, No I do not have the water pump for the 312. It was replaced with a home made one. Yes I am intrested in contacting the person you mentioned about the transmission if you could forward the infromation to me here or at [email protected] ("") when you get a chance. Lastly what is in the decal pack you mentioned and what are you asking for it?http://www.marineengine.com/discus/messages/12513/170666.jpgwaterpump

06-06-2008, 06:33 AM
"I have had several of you asking what the decals are that I have for the 312 so attached is a picture. I also have a decal set for a 285hp Interceptor that was in the 66 and 67 Century Arabians they are Black on Chrome. Any other decals can be recreated if you have a good picture and accurate deminsions.
Email me with questions.
http://www.marineengine.com/discus/messages/12513/170795.jpg312 replacement decal set

06-06-2008, 06:39 AM
"here is a picture of my rebuilt 312 w/ the 10 degree offset reduction gear box dressed with my replacement decals.
http://www.marineengine.com/discus/messages/12513/170801.jpgRebuilt 1957 Ford 312 w/ replacement decals

07-19-2008, 02:57 PM
"hi all, my dad and i are trying to restore a 1964 hydrdyne ski boat. not sure of the engine size. it&#39;s a v8 and has a ford interceptor i/o. it has 160 on the lower unit housing above the interceptor logo. trying to figure out where the drain plug is for the gear case. can only find a vent plug on top, any help on the engine would be great. we hooked a battery up and it roared to life. pretty cool as most of the work thus far has been cosmetic."

08-25-2008, 07:59 AM
"Putting heads back on a 292 Interceptor, in a 50&#39;s Century Resorter. Anyone know the torque specs for these heads offhand?"

08-26-2008, 06:43 AM
Boatr -

According to my Interceptor Tech Manual the head bolts should be 65-75 ft-lb.

05-29-2009, 02:35 AM
"Can anyone identify the transmission pictured in Neil MIllers post, this tread, on June 3, 2008? I have what appears to be the same gear, but don&#39;t know what it is. It doesn&#39;t look like any gearbox in my Interceptor parts manual, and I cannot find any numbers stamped on the block where they should be. The number block on the front cover is blank. This is supposed to be a &#34;62 292. It has the oil hoses and an oil cooler in the water line. I am especially interested to know how to check or add fluid."

05-29-2009, 06:32 AM
Best I can tell it looks like the velvet drive i just got rid of but I could be wrong... would have to see more pictures

09-01-2009, 11:26 PM
"Would there be a website or how I can decode and get all the specs for a marine engine interceptor off a tollycraft 64 17ft inboard engine, this is the number on the engine timing cover #ncd22r31720 thanku"

09-02-2009, 07:48 AM
What specs are you looking for? Are you just looking for an engine manual?

09-02-2009, 08:38 PM
"Thanks to Steven&#39;s pics I thing I have a 312, I need to get engine rebuilt gasket, manual, and starter, mine is frozen. thankyou"

09-02-2009, 08:44 PM
"Don&#39;t make to quick of an assumption, the 272 and 292&#39;s looked just like the 312&#39;s..."

09-02-2009, 08:59 PM
"Is there any other information on the engine I can get to figure out the size of the engine. I have the timing cover numbers#ncd22r31720, It has 2 carb, a tag 2618 s or 8, and b37 on the top of the engine carb set up, transmision is Velvet Drive Model ASI-70cR Ratio 1:1 4738 so far. Thankyou"

09-03-2009, 07:56 AM
If memory serves the heads should have a marking on one end. I know there are others on this site that are much more knowledgeable than I that can help you with this!!! Or your local engine shop could tell you what you have!

09-03-2009, 09:05 PM
"Thankyou Steven, I found the starter and the gasket at San Pablo Automotive, I told them it is a 312, and the machine shop said they will make sure."

09-12-2009, 07:59 PM
"Norbert, From my interceptor manual it decodes the serial number. Yous does not match the format exactly but here goes&#34; I dont know what the &#39;NC&#34; is, could that be &#34;NO&#34;? On the front of my engine it starts with &#39;NO:, but the the rest is blank, alas.
After that &#34;D&#34; means a 292 CI 185 HP, 22 means a Type 70 Warner gear with direct drive &#40;maybe yours was changed?&#41;, Sherwood water pump, special mounts, and Mallory ignition. &#34;R&#34; meand RH rotation, &#34;3&#34; means 1963 and 1720 is the S/N.
I have no numbers on my engine or drive. I think I also have the Velvet Drive A700, but am not sure. Could you post a pic of your drive?"

09-14-2009, 07:08 PM
"Brian, thankyou, I also found these numbers on the side of the heads on the left side, #c2ae c015c and I check the engine number on the timing cover and it looks like NO.San Pablo Automotive also said it is a 292 4.8.You thing its worth rebuilding this engine or should I replace it with a totaly different engine, I realy was hoping that its a 312, now im kind of debating rebuilt or replace. or maybe replace it with a bigger cam, your thoughts. Thankyou Brian for all your help."

09-14-2009, 08:44 PM
"Brian, I am having trouble up loading pics, but I found one that looks just like mine on Keaton Boats 63 keaton inboard. Thanks again Brian for decoding my engine ID #"

09-22-2009, 04:05 PM

When I first got this boat in May, I thought I might replace the engine. Now I have it running pretty well. It would depend on the economics, I guess. It is not the original engine in the Chris Craft, but it looks cool with the side draft carbs, I love the way it sounds, and I like telling people it&#39;s a T-bird engine. Out here in Hawaii, it may be difficult to find a good engine rebuilder anyway."

09-22-2009, 09:39 PM
"Thanks Brian, now that I know what I have, thanks to U, I was able to find what I need to rebuild the engine along with a machine shop, I think I can keep the cost down under $2500, which is half the cost of replacing the engine with 300 hp. chevy, plus I dont realy need all that power. I will use it mostly for wake surfing and boarding only here at SF bay area. Thanks again Brian, I will post pics as soon as I can."

09-23-2009, 10:38 PM

Thank you for mentioning the keatonboat.com website. It has come a long way in the past couple of years. Only the earliest Keatons used the 312 Interceptor and engine type was an option since they were all made to order. I believe the 63 you saw there was mine. I too love it when people say &#34;wow! A T-Bird engine&#34; which is why I put the T-Bird valve covers on it. I&#39;ve had VERY good luck with mine and have no trouble with the mechanical parts OR the carburetion. I wish you many hours of non stop fun!!

09-23-2009, 11:38 PM
Your transmission looks just like the one on my 292 interceptor, only yours is much prettier! Do you have any info on that transmission?. What fluid does it use?. I have a square head plug just outboard of the shift lever. Is that where you check fluid?. It looks like you have a name plate on the port mounting. There is nothing there on mine. Is the model number A700 correct? I am also missing the cover over the starter bendix, so the drive gets splashed with salt water. Any idea where to get a cover like that? Thanks for any info you can give me. Love all the photos on your web post!"

09-26-2009, 12:52 AM
"Brian, Im afraid I cant help you with the starter part but theres gotta be someone on this forum that can. My trans is a model B with a dipstick but the numbers on the tag are so faded I cant read them. It calls for type A fluid. I put a few pics up for reference.




10-03-2009, 08:12 AM
"I am restoring a Correct Craft with a 312, 215 hp engine. The engine was newly rebuilt when we bought the boat. To date, we have put about 15 hours on it and it runs great. It&#39;s got guts and I love the sound. There are 2 issues I have to deal with. It was converted from side draft to a down draft using an automotive intake. There is a channel that allows exhaust to pass from one head to the other and the manifold gets hot in this area and has burned the paint off. I&#39;m told the channel should be blocked off. Does anyone know about this and have suggestions for blocking it off.

The other issue is a venting problem. There is a pcv valve, but there is also a vent that runs into the old flame arrestor for the side drafts. I&#39;m guessing this vent should either be blocked off or vented to the flame arrestor? Does anyone know a solution to this problem?


10-03-2009, 08:35 AM
"http://www.marineengine.com/discus/messages/12513/294546.jpgMy 312

10-04-2009, 02:10 PM
Bruce - the 2 challenges you face can be taken care of at the same time! You need to either block off the arrestor hole in your valleypan or replace it with an automotive type. The exhaust crossover can be blocked with a couple of steel plates that are tolerance fit to either the heads or the intake. Good looking engine BTW!

10-04-2009, 08:27 PM
"Brock, thanks for the response. An auto valley pan sounds like an easy fix. I would think that a machine shop ought to be able to fit steel plates to the intake. I need to swap the carb for a marine carb as well, so this winter will be a good time to do it. We bought the boat as an unfinished project. The engine had be rebuilt, but never run and sat 3 years prior to this summer. So far, it runs better than our 2003 Indmar, and I was surprised how it pins you to the seat."

10-04-2009, 09:20 PM
"I have 2 complete ford FE marine engines complete with drives, exhaust manifolds, etc. right and left engines. it says 250 hp on valve cover. How do I find out which engines these are and what they are worth. They were removed from a boat that was scrapped years ago. they ran at that time. any info would be appreciated."

10-04-2009, 09:39 PM
also the valve cover says Trojan Interceptor. Firing order opposite rotation. rh 1-8-7-3-6-2-4-5

11-20-2009, 03:55 PM
"I know you guys are all about boats but I&#39;ve used this site for reference as I&#39;ve installed the Interceptor marine intake on my 1955 Thunderbird and thought some of you might want to take a look since I see one of you has put the bird valve covers on. Go to Timmy&#39;s Y-Block page to see the pics, this also a very good site for anyone working on a Y-Block. Grew up on the Great Lakes and love the older boats you guys are restoring!!"

11-27-2009, 05:22 PM
"Gary, those pics don&#39;t show on that web page. Did you block off the heat channel and what did you use for a valley pan?"

11-30-2009, 10:46 AM
"http://m571.com/yblock/intake.htm ("") is the web site with the pics of my Interceptor manifold, I used the stock valley pan and left the heat channel intack"

12-01-2009, 12:56 AM
"Gary, I looked through Timmys&#39; site with great
interest. Several intake pics did not appear
to work for me. Sadly they included yours.
Very informative link though! Thankyou!!!"

12-27-2009, 09:35 PM
"My uncle gave me a 1963 trojan boat with a 312 in it. It also has the transmission. I am unsure if it is a type A, B, or C. It has brand new manifolds on it. The motor has not been cranked in around 20 or 30 years. Is this set up worth anything and if so how much?


Delta a GoGo
04-09-2010, 11:15 PM
Thanks in advanced
I have a 1962 Arena Craft with a 312 Interceptor and the engine oil dip stick is broken.
1. how much oil dose it ohold including filter?
2. where can I get a new or use dip stick and tube?

Delta a GoGo
04-19-2010, 12:38 AM
"Ford 312 Interceptor motor Parts. I have a linebored block, and new heads. Lots of other parts too"do you have an engine oil dip stick and tube
[email protected]

05-13-2010, 09:02 PM
I just purchase a Dunphy X 55. It still has the twin side draft carbs. Due to the engine being on an angle and the leaking problems with the orig. carbs. I would like to change the intake manifold to a 4 barrell. Does anyone know where to get a Marine intake 4 barrell for a Y block interceptor? Or how to convert an Automotive one for marine use?


05-17-2010, 07:57 AM
I believe marine down draft manifolds are pretty rare. I have the only one I have seen. Try this link http://www.correctcraftfan.com/diaries/details.asp?ID=500&sort=&pagenum=2. This guy used a Blue Thunder auto manifold. He also is knowledgable about Y blocks and was very helpful to me. You'll need different plumbing fixtures. Also, CorrectCraftFan.com is an excellent resource for older inboards. There's even a Dunphy owner over there, but watch out, he'll hammer the heck out you if you tell him you're going to convert your rare Dunphy. To break the ice with him, tell him your going to west system the whole boat and paint it metal flake. He's very knowledgeable about your boat and a good guy.

05-17-2010, 08:22 PM
88 skier,
I will check out the site and thanks for the help

Thanks again

07-20-2010, 09:33 PM
I have manifolds for a 292 or 312 I do not know if they will fit 289 they should be the same small block manifolds but they will not be cheep ill charge 100 dollars less than marine sales and service in clinton twp michigan because I think that guy is a thief. To anyone out there I need a cam shaft new or used for a 312 I am currently rebuilding left turn. I also have horizontal intake manifolds as well as misc timing gears ect. leave a message 248 628 4676

If you are still looking for a camshaft reply to me.

08-10-2013, 10:47 PM
I have a "C' model dearbomatic transmission. I have gotten it to run ok and will go into forward and neutral and used to go into reverse. Now it doesn't go into reverse. It also makes a rattling noise as it engages. I would like to rebuild this transmission and keep it original and I am pretty handy- any chance you can give me some pointers? I have the interceptor manual that's been going around on the forum online (yellow cover), so it has a good exploded diagram. What do you think requires rebuilding? If so can you recommend a good place for parts and some good instructions?