YO-EL
06-02-05, 04:01 PM
Pretty awesome results..
Sent out a set of stock heads to be lightly cleaned up, not a major porting, & got a 35 RWHP gain & 30 RWTQ...
Definitely worth sending out stock heads & doing it this way instead of buying aftermarket heads for thousands more!
A full port job would make even MORE HP & TQ!
Still have my stock heads available.. $450...
The light clean up & blending of the bowls was $400..
Compare that to over $2400 for aftermarket heads!
Dyno sheet here:
Red Run 25 is BEFORE cleaned up heads
Blue Run 31 is AFTER cleaned up heads...
Don't look at peak spike numbers....
Look at 6200 rpms...
HP from 353 to 388.4 (+35)
TQ from 294.7 to 324.2 (30)
http://www.corvetteforum.net/c5/indypace78/hd2.jpg
Sent out a set of stock heads to be lightly cleaned up, not a major porting, & got a 35 RWHP gain & 30 RWTQ...
Definitely worth sending out stock heads & doing it this way instead of buying aftermarket heads for thousands more!
A full port job would make even MORE HP & TQ!
Still have my stock heads available.. $450...
The light clean up & blending of the bowls was $400..
Compare that to over $2400 for aftermarket heads!
Dyno sheet here:
Red Run 25 is BEFORE cleaned up heads
Blue Run 31 is AFTER cleaned up heads...
Don't look at peak spike numbers....
Look at 6200 rpms...
HP from 353 to 388.4 (+35)
TQ from 294.7 to 324.2 (30)
http://www.corvetteforum.net/c5/indypace78/hd2.jpg