I might be buying some heads....
#1
I might be buying some heads....
are these the right ones to buy for an ls1???
getting them from a friend....set has been ported and polished...valves included.
I'm getting them with no springs or retainers....but I alredy have those....
I have a 2000 ls1
getting them from a friend....set has been ported and polished...valves included.
I'm getting them with no springs or retainers....but I alredy have those....
I have a 2000 ls1
#2
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Here is a list of a few casting #'s:
853 97-00 aluminum 5.7
241 01-03 aluminum 5.7
243 LS6 aluminum 5.7
852 and 706 99 and up 4.8-5.3 truck heads
873 99-00 LQ4 6.0 iron heads
317 01 and up LQ4 6.0 aluminum heads
035 02 and up LQ9 6.0 aluminum heads
853 97-00 aluminum 5.7
241 01-03 aluminum 5.7
243 LS6 aluminum 5.7
852 and 706 99 and up 4.8-5.3 truck heads
873 99-00 LQ4 6.0 iron heads
317 01 and up LQ4 6.0 aluminum heads
035 02 and up LQ9 6.0 aluminum heads
#3
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706 Heads
As The List Above Mentioned You Have The 5.3 Heads.stock They Have The Same Intake And Exhaust Port As An Ls1 Head They Just Have A 1.89" Intake Valve Whereas The Ls1 Has A 2.00.these Heads Are Used To Bump Up The Compression Without Milling.i Have The 862 Casting.
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Originally Posted by soundengineer
So I should be ok with just slapping them on If I buy them???
what kind of compression ratio should I expect?
and will the smaller intake valve hurt me any??? or should I make sure there is a 2.00 intake valve in it??
what kind of compression ratio should I expect?
and will the smaller intake valve hurt me any??? or should I make sure there is a 2.00 intake valve in it??
#6
so will I need a different length pushrod with these heads???
and will I have PtV clearance issues with my X1 cam??
and If it has the smaller valves in it...should I take it to a local machine shop, have them make it fit a 2.0 valve...and buy some valves to fit??
and will I have PtV clearance issues with my X1 cam??
and If it has the smaller valves in it...should I take it to a local machine shop, have them make it fit a 2.0 valve...and buy some valves to fit??
#7
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Originally Posted by soundengineer
so will I need a different length pushrod with these heads???
and will I have PtV clearance issues with my X1 cam??
and If it has the smaller valves in it...should I take it to a local machine shop, have them make it fit a 2.0 valve...and buy some valves to fit??
and will I have PtV clearance issues with my X1 cam??
and If it has the smaller valves in it...should I take it to a local machine shop, have them make it fit a 2.0 valve...and buy some valves to fit??
If the heads are unmilled then there should be no issue with PtV clearance.