Do all the newer 5.3s that have the 243s have flat tops or what's the deal there?
Do all the newer 5.3s that have the 243s have flat tops or what's the deal there?
yes, the 5.3 HO have the 4.8 pistons. If my milled 862's don't do it for me, that will be the next upgrade
blown transmissions are about as useful as 97% of the guys on this forum
if i shaved the heads .030" will the intake bolt holes still line up??
2008 GMC Sierra SLE....370ci LY6 with some goodies
1995 C2500- LS1 swap with a mp112
build thread- http://www.ls1truck.com/forums/lsx-t...-ls1-swap.html
Yes...
PS, my 5.3 is the LMG with 9.9 CR and 243s.
Last edited by pl4yboy; 08-19-2010 at 06:54 PM.
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2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
2013 FORD CCSB F350 6.7 Powerstroke 4x4
and the intake runners will still line up with the intake ports on the heads after shaving the heads?? sorry about all the questions i'm kinda new to this and i'm trying to get all the info i can before i start spending a lot of money
2008 GMC Sierra SLE....370ci LY6 with some goodies
1995 C2500- LS1 swap with a mp112
build thread- http://www.ls1truck.com/forums/lsx-t...-ls1-swap.html
243 heads suck, they won't line up after being milled, and they loose power compared to 862's....
pretty sure that was directed at me. Guys with z28s/trans ams, like putting 862's on their engines to bump compression, 243s are good heads for certain applications, but not for everybody. (you're def one of those guys who knows alot more then me, just throwing out things I've heard/found in my research)Originally Posted by DBRODS
blown transmissions are about as useful as 97% of the guys on this forum
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