LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Is it possible to have a 48 cc LT1 head?

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Old Jul 4, 2006 | 02:58 PM
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Default Is it possible to have a 48 cc LT1 head?

I bought a set of heads that were ported by MTI, and then worked over a little more by another shop before I got them. The heads were probably milled at least 3 times. I had my machinist mill them for straightness and cc them before I put them on my motor. He said that they cc'd 48. Is this possible?
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Old Jul 4, 2006 | 02:59 PM
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Yes.


P
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Old Jul 4, 2006 | 03:34 PM
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Matt my MTI LT1 heads were down to 51CC and the guy redoing them wanted to take them down even more. BTW we got mine on the bench, 243CFM at .500 and flat line after that. So if you ever wondered what that heads flowed back in the mid 90s when the first h/c cars came out, thats it. Your maybe a lot more recent than mine and flow a lot better, my heads were done circa 1996.
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Old Jul 4, 2006 | 03:51 PM
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243!!! Look at the progress we have made in 10yrs.
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Old Jul 4, 2006 | 04:11 PM
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Originally Posted by Speed Density
243!!! Look at the progress we have made in 10yrs.

It wont take much to pick them up prety good.
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Old Jul 4, 2006 | 04:26 PM
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Mine flow 289/190 @.600
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Old Jul 4, 2006 | 07:30 PM
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mine 284/225 @ .6
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Old Jul 4, 2006 | 08:09 PM
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I would worry about a head decked that much.
Also make sure to adress the servere intake alignment issues that could arrise
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290/220@.525 by GTP
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