LT1 ported Heads or AFRs
Race Director
Joined: Jan 2002
Posts: 12,264
Likes: 88
From: O'Fallon Missouri
I would also like to see AI, LE, ect heads competing in these comparisons. But, sadly enough magazine and Sat morning car shows comparisons are all about advertising $$ revenew.
One gear at a time
Joined: Aug 2003
Posts: 5,244
Likes: 24
CI 8-9-10 Veteran
St. Jude Donor '07-'08-'09
There was a challenge offered here about a year or so ago (in the jsup days 
) but noone ponied up. Member wesmigletz offered up his 62 and had numerous heads, intakes, etc done with track times, etc. Its been posted here and in a mag or two also. Ill shoot him a pm and see if he can give links.
) but noone ponied up. Member wesmigletz offered up his 62 and had numerous heads, intakes, etc done with track times, etc. Its been posted here and in a mag or two also. Ill shoot him a pm and see if he can give links.http://www.corvette-guru.com/modules...d=6558&start=0
I took the car back to the track on New years Day 2010. It was my first time driving it since July. This time we went to Fontana instead of Famoso. I literally emptied my crap from the trunk and went 12.14 @ 112.49. The car is still being held-back by it's 5400 RPM shift point, with the stock PG shifter left in D. The carb is the same 670 vacuum secondary Holley I used at the track last summer. The carb is too small. If I could get the shift points up, and/or a larger carb, the car would be deep in the 11s.
I became a believer in two things from this test: 1. HR cams rock (+30 HP vs a solid flat tappet), and AFR heads rule (+40 HP vs Dart 200 cc Pro1 Platinum Heads). I can cruise on 87 octane, get 19 MPG, and run 12teens, with the shifter left in D.
Kinda sad the Dart 200 CC Pro 1 Platinum Heads were only worth 12 HP vs my (then) 46 year old Camel Hump Heads.
Le Mans Master
Joined: Aug 2004
Posts: 5,141
Likes: 7
From: Metairie Louisiana
Why is it we don't see independent dyno results of engines wearing heads offered for sale by the two names so often referenced? I'm specifically referring to AI and LE.
Most guys sing their praises, but where are the numbers - the results? Since our economic system is so based on competition, how do those two compare with the others?
Most guys sing their praises, but where are the numbers - the results? Since our economic system is so based on competition, how do those two compare with the others?
It's probably a conspiracy by both porters to boost name recognition and its worked pretty well too. 
All of the posts are individual tests though not a a real back to back comparison. I don't think either of these shops puts big money in advertising or sposerships like some of the big names. Most of the knowledge is spread by word of mouth or the internet.
Thread Starter
Pro
Joined: Jul 2005
Posts: 585
Likes: 0
From: Jacksonville FL
http://www.youtube.com/watch?v=VlDpt...layer_embedded
Afr 195 Street Eliminators on Red Vette 383 exotic muscle. Eagle Forged, comp cam no spray.
Afr 195 Street Eliminators on Red Vette 383 exotic muscle. Eagle Forged, comp cam no spray.
Last edited by KBRVETTE93; Oct 18, 2010 at 10:18 PM. Reason: duh
