Lets say for drive purposes, one was to detune some blown 454's.

Right now they are 4 bolt main blocks, gm forged crank and rods, forged pistons, aluminum dart heads, hydraulic roller cams, roller rockers, stellings headers, etc, and have small b&m blowers and supposedly make 600+hp coupled to huber trannies and trs.

Would I be better off removing the blowers, installing some decent intakes, and keep them reliable and not as likely to blow the trs (which currently have labbed 5 blades on them)? I figure with aluminum heads and hyd roller cams I should be able to make an honest 500HP mills out of them

Keep the blowers and run them with 3 blades or 4 blades and go easy on the sticks?

Konrads are an option I know, but 20g for a pair isnt right now. This is for a old heavy 40ft wave crusher,Thanks

Keep the motors as is. Go to a 4 blade for a bit more slip and be easy on the sticks .Easy meaning: treating them with respect. Even at 500hp, a heavy throttle hand and rough water can be very hard on the drives. There are plenty of heavy boats with 600hp and trs drives out there and running fine.


Darrell.

PS might even go to 3 blades. I ran 3 blades on my TRS boat, and they always worked great. The drives were deep enough that the boat never had a problem getting on step.

That beast is hard enough on drives with stock power, but I couldn't stand slowing the boat down if it was mine. Baby it and save for Konrads, but know your living on borrowed time. I would lose the 5 blades though.

Put on a larger top pulley to reduce boost. A simple solution without a lot of work.

What pitch 5 blades are they? I might be interested. Don't go n/a you'll be dissapointed. Your engines are likely low compression. Combine that with a cam, head, intake, carb package potent enough to make 500 hp and you will have large drivability problems. Turn the boost down if anything, 4 blades will take a load off the drives.