"Brian,
Welllll,as they sa
"Brian,
Welllll,as they say, heres "the whole load".
I have been pondering different re-power options(including a tri-powered 283)for my 64 Correct Craft American Skier. It currently has a flywheel-forward, 100hp/170CI, Inline 6 Ford/Interceptor.
After LOTS of research, I have decided to stay with the 6 banger(Love the sound!). The first thing Im planning to do is rebuild a 200CI six from a 79 Fairmont. We think its the largest displacement 6 that should "bolt" in place of the 170. That alone is good for aprox 20 to 25hp.
The biggest down side to these motors, is the fact that the intake is cast into the head, so aftermarket intakes arent made for this motor. However, they do make "adapters" that can be drilled and welded/brazed into the stock head/intake runner for multiple carb applications.
The boat currently uses a single Carter "YH" sidedraft carb that is aprox 190CFM. , This engine sure wasnt designed for performance.
They actually make an aluminum head for this motor, and with quite a bit of messaging, are pushing upwards of 300hp in cars out of some of these motors!
Problem .. Cost .. an aluminum head and intake are around $2,200, w/o carburation. Not in budget :-(
So, right now we are exploring different ideas on how best to "soup-up" a stock motor. The 79 head sports a larger carb intake bore and intake valves than the earlier versions. Plans are to do a little porting, mill the head, and do a three angle valve job.
Now, to the exhaust, the factory manifold only has around a 2" square opening, we would like to get around a 2 1/2". Thats where the homemade manifold question is coming into play. Right now, if the "flow numbers" even warrant new, Im thinking stainless steel might be easiest to make, as well as looking good.
We are still doing the math on what combo best fits into my "HP to cost" ratio.... 150 would sure be nice, but is probably stetching it a bit.
Any ideas or thoughts?
sorry for the long post...
Thanks Steve"