ls1 block 5.3 heads?
ls1 block 5.3 heads? when doing the ls1 w/5.3 heads, do you use the stock 5.3 valves or are you guys switching those out for the ls1 valves?
just making sure there aren't any piston/valve clearance issues
just making sure there aren't any piston/valve clearance issues
I can shift faster than you.
iTrader: (21)
Joined: Nov 2001
Posts: 5,133
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From: Baton Rouge, LA
You really need to, at a bare minimum, open the 5.3l combustion chambers to the LS1's 3.898" bore and install either stock 2.00" intake valves or a 2.02" aftermarket valve. Otherwise, the 5.3l heads would not be of much benefit.
