Difference in OEM LS1 heads
Thread Starter
Former Vendor
Joined: Nov 2005
Posts: 8,995
Likes: 2
From: Spring Texas
St. Jude Donor '08
Difference in OEM LS1 heads
What is the difference in the OEM factory heads offered for the LS1. Is there a noticable difference (SOTP) in the HP they produce?
I ask because my 97 has the original 800 series POS heads. I've got all sorts of bolt ons and last put down 330rwhp. Then i rode in a bone stock 2002 that seemed to have significantly more low end umph than my car. (both cars in question have the 3.15 gears)
I ask because my 97 has the original 800 series POS heads. I've got all sorts of bolt ons and last put down 330rwhp. Then i rode in a bone stock 2002 that seemed to have significantly more low end umph than my car. (both cars in question have the 3.15 gears)
Melting Slicks
Joined: Dec 2003
Posts: 3,315
Likes: 17
From: Near Jacksonville Fl.
I don't think there is any difference in the heads other then the bolt pattern for the valve covers. Perimeter vs center bolt.
The real difference is in the cam profile for the later model LS1's your engine is rated @ 350 hp 345 lbs tq. the later engines are 350 hp and 375 lbs tq.
If you want better heads get some 243's.
The real difference is in the cam profile for the later model LS1's your engine is rated @ 350 hp 345 lbs tq. the later engines are 350 hp and 375 lbs tq.
If you want better heads get some 243's.
Thread Starter
Former Vendor
Joined: Nov 2005
Posts: 8,995
Likes: 2
From: Spring Texas
St. Jude Donor '08
I don't think there is any difference in the heads other then the bolt pattern for the valve covers. Perimeter vs center bolt.
The real difference is in the cam profile for the later model LS1's your engine is rated @ 350 hp 345 lbs tq. the later engines are 350 hp and 375 lbs tq.
If you want better heads get some 243's.
The real difference is in the cam profile for the later model LS1's your engine is rated @ 350 hp 345 lbs tq. the later engines are 350 hp and 375 lbs tq.
If you want better heads get some 243's.
