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WHAT PROP TO USE

donzi22

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I HAVE A 1988 DONZI REGAZZA WI

I HAVE A 1988 DONZI REGAZZA WITH A 4.3L THUNDER BOLT MOTOR AND I HAVE A 19 PITCH STAINLESS STEEL PROP THAT REV'S OUT AT 5200 RPM.WHAT OTHER PROP CAN I PUT ON IT?
 
"There are many props you can

"There are many props you can use, I think the 4.3 has a Op range of 4200-4800 so you should be able to drop a 21p 4 Blade on there and get some nice perf and speed from that.. Some marinas will let you try props before you buy, I know you can buy a set from Piranha Propeller.com and if you dont damage their blades you can send back and try a different set, they sell you 2 sets of blades with their pro pack I think."
 
Even a 3 blade 21P x 15.25&#34

Even a 3 blade 21P x 15.25" will perform well. I've used one on my 4.3L 175 hp. The 19P has a little better performance overall. I can't get above 4500 RPM w/a 2 barrell non-vortec.
 
"NO CAPS, please.

No, a 23P


"NO CAPS, please.

No, a 23P is not too much. It should drop the RPMs by 300-400 RPMs which would put the engine in the correct RPM range."
 
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