Vortec block differences?
10-09-2002, 05:38 PM
#1
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Location: Ft. Worth, TX
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Car: 89 Turbo Trans Am and lots of non-3rd gens
Engine: 231 SFI Turbo's, LT4, LT1
Transmission: 2004r, 4L60E
Vortec block differences?
I noticed there is a Create Vortec ZZ4 short block in the GM performance catalog, whats the difference between it and the regular ZZ4 short block?
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If I wanted to use the cast iron Vortec heads, would I have to have a Vortec block? Or would any pre-LT1 SBC block work?
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If I wanted to use the cast iron Vortec heads, would I have to have a Vortec block? Or would any pre-LT1 SBC block work?
10-09-2002, 05:46 PM
#2
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The Vortec heads will bolt to any nonLT-1/LT-4 motor from1955 to
1996+. 400 blocks would require drilled steam holes in the deck face.
Vortec heads require a special Vortec style intake manifold.
1996+. 400 blocks would require drilled steam holes in the deck face.
Vortec heads require a special Vortec style intake manifold.
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