Wanting to build a 632 NA , whos crank rods and pistons do I use ? I could go the super high end stuff , but couldnt afford the rest of the engine! . What has everyone used successfully ?
Manley , Scat , Eagle , Molnar , Dart , Lunati , K1 . I think the vast majority is offshore stuff , but not positive. Looking to go with a 4.600 X 4.750 , and a 6.535 rod to keep the compression down below 9.5-9.7 .
Will have to have a 20cc dish to also help with compression . Will have a Dart Block 10.200 deck .

I have been using Ohio Crankshaft's cranks and rods lately and have been very impressed with the product for the price.

Ohio Crankshaft

They sell a 632 short block for 5K, just needs different pistons to lower compression, which they will do. Don't know how you would piece one together for that$

Check out competitionproducts too they have some good prices and name brands

Little more on your build would be nice. Like power and rpm your looking for.

No need to cut cost on a big inch, hp engine, I'd go with a Callies crank and Oliver rods and Diamond pistons to go along with your Dart block....jmo

I'm looking for around 800hp , same torque . Wont ever be supercharged so I think the Callies , Oliver rotating parts are overkill. I also want an off the shelf piston for simplicity of repair . Looking to do a 6.535 rod , 1.270 pin height with a 20-30cc dish to keep compression down . Just curious what has been run successfully in the medium price range parts.

I would not short change the crank at all, 632's were breaking cranks, had several guys I knew that were racing(I know different deal) but all had cranks that just broke... so what out there

Knowing nothing, doesn't seem like a very good rod to stroke ratio for a marine app.