Do rectangular port heads fit LS1 blocks?
11-28-2010, 06:23 PM
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Do rectangular port heads fit LS1 blocks? The rectangular port heads.. Those are for a 4.00"+ bore, right?? Wondering if I can do a set of rectangular port heads on my LS1 block.. I'm a little behind on this subject. From what I remember, those were LS3 and LS7 heads.
Last edited by bayer-z28; 11-28-2010 at 06:59 PM.
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11-29-2010, 11:01 AM
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^ Yeah, exactly.. 
I'm finding that they are mostly on 4.0" and up bore blocks and engines. 4.06" LS3, 4.00" LS2 and 4.125" LS7. I'm just confused about the casting #'s other than 241 and 243's.
K.. Than answers it.. Thanx..
Was just curious.. I don't feel like dishing out obscene amounts of money for the heads to fit mine. I'd rather just go out and get an L99 block.
I'm finding that they are mostly on 4.0" and up bore blocks and engines. 4.06" LS3, 4.00" LS2 and 4.125" LS7. I'm just confused about the casting #'s other than 241 and 243's.K.. Than answers it.. Thanx..
Was just curious.. I don't feel like dishing out obscene amounts of money for the heads to fit mine. I'd rather just go out and get an L99 block. 
