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Old 03-26-2009, 11:35 PM   #26
'72customdeluxe
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Re: Summit heads what are thes comparable to?

The lt1 also ran to '97 in f-bodies and maybe began in '91 vettes
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Old 03-12-2015, 11:50 PM   #27
Adambomb606
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Re: Summit heads what are thes comparable to?

Keep it simple
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Old 03-13-2015, 10:21 AM   #28
Longhorn 70
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Re: Summit heads what are thes comparable to?

There was also an LT4 engine that produced a bit more horses than the LT1 from the factory. It was only 96-97 in Vettes with manual transmissions in 96. 97s may have been available with an auto. Basically the LT4 was the same as LT1 with better heads, intake and camshaft.

My LT4 has bigger cam, extrude honed heads and manifold, roller rockers, 6" rods and stroked to 3.875. It has no problem hitting the 6800 RPM rev limiter right now. It pulls HARD from 1500-6300. Plus they are purdy.
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