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Will these heads work?

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Old 02-03-2006, 04:26 AM
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Will these heads work?
Hey guys i was talkin to one of my boys and he was tellin me to put 305 heads from a sb chevy on my LS1 for more power. Has anyone seen or heard of this being possible to do to my car? Or is he just running his mouth about s*** that he does know about?

Thanx in advance

Ben
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Old 02-03-2006, 09:30 AM
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I dont think so

305 was the worst heads cam combo gm ever put in a v8
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Old 02-03-2006, 08:41 PM
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Originally Posted by 97z2801ss
I dont think so

305 was the worst heads cam combo gm ever put in a v8
I can vouch for that
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Old 02-03-2006, 09:41 PM
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No!! Don't even think about it.
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Old 02-03-2006, 10:40 PM
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Yea your friends an idiot that pretty much settles it
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Old 02-03-2006, 10:54 PM
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Originally Posted by Bernotas05
Yea your friends an idiot that pretty much settles it
Yep, LS1 heads can only be swapped with other heads from Gen III engines.
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Old 02-03-2006, 11:38 PM
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cool thanx guys im gonna beat me freinds *** for being so stupid
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Old 02-04-2006, 02:57 PM
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305 heads was a common swa on the old 350, it raised compression, it made a little more power from that if stock, but add a cam and it made less unless you used a specific casting (there was one early one that had bigger vlaves)
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Old 02-05-2006, 12:42 PM
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the 416 and 081 casting were used on the tpi 305's and can be ported to flow as much as ported vortecs but they dont fit on the ls1
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Old 02-06-2006, 04:43 AM
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thanx for the info guys
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Old 03-08-2006, 01:57 PM
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The only part an LS1 shares with a regular SBC is the lifters. Nothing else is transferable, except between LS1 to other LSx engines.
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Old 03-10-2006, 04:44 PM
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hey tom how much would u charge me 2 tune da SS?
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Old 03-11-2006, 03:00 AM
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thanx for the info bad ls1
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Old 03-12-2006, 06:29 PM
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Originally Posted by 97z2801ss
hey tom how much would u charge me 2 tune da SS?
100 bones.
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Old 03-12-2006, 06:46 PM
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I wouldn't beat him too bad- he did have some decent info, just not to the right person.

A friend of mine is swappin out his 305 for a 383 on a budget and my engine builder recommended gettin a set of 305 heads, but only the good casting numbers which were said- the other heads were not so good..
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