Vortec Heads L31 and L30
01-19-2001, 08:17 PM
#1
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Car: 1989 IROC-1
Engine: L98
Transmission: 700r4
Vortec Heads L31 and L30
Somebody is selling a set of L30 Vortec Heads, and they said heads came off of a 305. The intake and exhaust is identical to a 305, with a 1.84 intake and 1.5 exhaust. I know that the L31 vortec heads from the 350 have a 1.94 intake.
Anybody heard of vortec heads designed for a 305, I guess it's the L30 model?????
What, besides the intake size is the difference between the two.
Thanks again.
Anybody heard of vortec heads designed for a 305, I guess it's the L30 model?????
What, besides the intake size is the difference between the two.
Thanks again.
01-20-2001, 04:47 PM
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Car: '98 Z
Engine: LS1/6
Transmission: 4l60E
the L31's flow a ton better because they have a different size intake and exhaust tracks, DONT waste your dough on the L30s.
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