Ok I have a 95 Trans Am I am in the process of building. The engine is at the machine shop they are about to do teardown on Tuesday. I had purchased the XFI 280 230/236 duration, .576/.571 lift, 113 LSA. I had planned on zero decking the block and going with forged rods and pistons, stock crankshaft. I also have ported and polished heads and intake, 52mm throttle body, pacesetter longs egr delete, 36 lbs/hr accels and the occasional 150 to 200 shot of juice. Today the guy who ported and polished the heads and intake offered me a forged rod piston combo with a scat 9000 crank for a 383 asking 800. Keep in mind I have not bought the other set of rods/pistons yet. I guess what my question is would the gain be worth going with 383 or stay with 355. Thanks guys I have never posted but have got a TON of information from you guys already.

 

I would do the 383 except it looks like the scat 9000 crank is rated at 500 hp and if you are planning a 200 shot, you're going to be over that.

 

I am not for sure and this doesnt mean it is true but infor for a scat 9000 on ebay states

Scat 9000 Pro Comp Series Features

Aero-Wing counterweights increase horespower by reducing windage
Straight shot oil holes
Lightening holes in all rod throws
Stress-relieved and shot-peened
Precision ground and micropolished
Cast from Special Space-age 9000 Material that is stronger than O.E.M Cast
Designed after there Custome Billet cranks
Small Block Rated to 600 Max HP
Brand new and in the box
Scat 9000 Cranks are avilable with many different stroke combinations.


Like i said that doesnt mean its so and would i be pushing that limit or not.

 

Bump

 

No way I would trust a cast crank in a motor that will be seeing spray. Do it right and go fully forged. Thank yourself later.