? on stock heads

Rick 91GT · 06-21-2001, 07:26 AM

juiceman I agree and I disagree.... You will never get a set of E7's to flow like a TFS,EDELBROCK, HOLLEY or AFR no matter how much porting is done. The 289 heads although will bump compression but the ports are small as hell, smaller then a E7. True their are guys deep in the 11's with stock componets, and I commend all of those people because that is a hell of a accomplishment.

Aluminum heads do loose more heat then a cast iron head but you can run more timing, and 50psi of the front of the car if it see's track duty is a lot, combined with the battery it's 100psi, thats a lot of weight off the right place. You are correct to the street guy it really probably won't matter. But a set of Aluminum heads will make you quicker as they will add 50-75HP with the proper combo.

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Check Out My Site 91GT,Holley SysteMAX II Kit-Heads 2.02" x 1.60" port matched to a 1262,Anderson N-61,24#,76mm C&L,Full MAC exhaust 1-5/8" Long tubes,2-1/2" O.R H-Pipe,2 1/2" cat back, No A/C or PS or emissions, 12" K&N Filter,RNH PERFORMANCE Ram Air,Ron Davis Radiator,Full Suspension,S&W 8pt "X" brace,JAZ seats,3:73's,Welds..etc,4:30's and 31 splines coming very soon! FIRST TIME OUT 12.16@111 WHEELS-UP

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06-21-2001, 07:26 AM	#11
Rick 91GT Procharged! Join Date: May 1999 Location: Hanover, PA Posts: 1,539	juiceman I agree and I disagree.... You will never get a set of E7's to flow like a TFS,EDELBROCK, HOLLEY or AFR no matter how much porting is done. The 289 heads although will bump compression but the ports are small as hell, smaller then a E7. True their are guys deep in the 11's with stock componets, and I commend all of those people because that is a hell of a accomplishment. Aluminum heads do loose more heat then a cast iron head but you can run more timing, and 50psi of the front of the car if it see's track duty is a lot, combined with the battery it's 100psi, thats a lot of weight off the right place. You are correct to the street guy it really probably won't matter. But a set of Aluminum heads will make you quicker as they will add 50-75HP with the proper combo. ------------------ Check Out My Site 91GT,Holley SysteMAX II Kit-Heads 2.02" x 1.60" port matched to a 1262,Anderson N-61,24#,76mm C&L,Full MAC exhaust 1-5/8" Long tubes,2-1/2" O.R H-Pipe,2 1/2" cat back, No A/C or PS or emissions, 12" K&N Filter,RNH PERFORMANCE Ram Air,Ron Davis Radiator,Full Suspension,S&W 8pt "X" brace,JAZ seats,3:73's,Welds..etc,4:30's and 31 splines coming very soon! FIRST TIME OUT 12.16@111 WHEELS-UP