Results 1 to 3 of 3
Thread: heads
-
04-28-2008, 10:53 AM #1
- Join Date
- Apr 2008
- Location
- Newport News Va.
- Posts
- 14
black- 02 NHRA Firebird
heads
Are there any advantages to the 5.3 heads over the ls1 heads? I am looking to swap in new heads on my 02 LS1.
-
04-28-2008, 11:24 AM #2
on stock 5.3 heads you will have higher compression, but they dont flow the same as ls1 heads and they have smaller valves. If you get them ported they will be an improvement
-
04-29-2008, 10:20 AM #3
stock 5.3 and stock LS1 have the same cc volume 200/70 the difference is in the valves. 5.3 heads have smaller valves. Most aftermarket 5.3's have larger valves anyhow. I know my PRC's stage 2.5's have 2.04 intake 1.575 exhaust valves. The 5.3 heads have a smaller combustion chamber at 61cc's raising your compression a little without milling.
Thread Information
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Similar Threads
-
Late-Model GTO Heads and Cam - The Voice Inside Our Heads, P
By Ed Blown Vert in forum GTOReplies: 0Last Post: 03-16-2011, 09:30 AM -
Late-Model GTO Heads and Cam - The Voice Inside Our Heads
By Ed Blown Vert in forum GTOReplies: 0Last Post: 02-04-2011, 02:00 PM -
AFR heads VS. Ported and beefed up stock heads.
By hutcher04 in forum Internal EngineReplies: 10Last Post: 03-14-2010, 08:27 AM -
New Heads or Port/Polish Stock Heads?
By Black02LS1 in forum Internal EngineReplies: 32Last Post: 06-22-2007, 11:29 PM
Bookmarks