5.3 head question
Thread Starter
Banned
Joined: Dec 2005
Posts: 265
Likes: 1
From: pittsburgh,pa
5.3 head question i have a set a stock 5.3 heads off a yukon and i was going to put 2.00 valves in them from am ls1 head. i was wondering if anyone has done this and what gains were made from it.