HELP,HELP pontiac gurus

Vic Santos · 11-05-2017, 02:56 PM

Craig, your combo will not live at 7500 RPM and will not make any power there. For 7500 RPM you will need much lighter pistons and pins, stronger and lighter rods and a 4340 forged crank that has been internally balanced. You will also need a lot of porting and a bigger manifold and a strengthened and filled block. The stock oil system will also be a problem. You will need high pressure and lots of oil. You will also need a roller cam and rockers and big springs; etc, etc. All of this is needed for high power. The stock block bends at high power and so does the crank. The more power the more problems. RPM KILLS! Pontiacs with stock castings are torque engines and should be designed for it i.e. low rpm.

11-05-2017, 02:56 PM	#25
Vic Santos Junior Member Join Date: Dec 2008 Posts: 27 Likes: 0 Liked 14 Times in 2 Posts	Re: HELP,HELP pontiac gurus Craig, your combo will not live at 7500 RPM and will not make any power there. For 7500 RPM you will need much lighter pistons and pins, stronger and lighter rods and a 4340 forged crank that has been internally balanced. You will also need a lot of porting and a bigger manifold and a strengthened and filled block. The stock oil system will also be a problem. You will need high pressure and lots of oil. You will also need a roller cam and rockers and big springs; etc, etc. All of this is needed for high power. The stock block bends at high power and so does the crank. The more power the more problems. RPM KILLS! Pontiacs with stock castings are torque engines and should be designed for it i.e. low rpm.