what size valves to use for ported lt1 heads on a 383?
02-19-2007, 11:15 PM
#1
what size valves to use for ported lt1 heads on a 383? HEads were ported for a 355 but since put on a built 383. Now due to some issues , we have bent valves and was wanting to go up from 1.94 to 2.0 or2.02's .
What do you all recommend for a 383 with the small combustion chamber heads? This will be going in a 65 chevell with a pretty big cam and a 3800 stalled art carr700r transmission.
this not a baby cam in this car just to let you in on what we are looking for.
What do you all recommend for a 383 with the small combustion chamber heads? This will be going in a 65 chevell with a pretty big cam and a 3800 stalled art carr700r transmission.
this not a baby cam in this car just to let you in on what we are looking for.
02-19-2007, 11:35 PM
#3
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2.0/1.56 is the largest you can go on stock seats. Any larger and you'll have to get new seats, but maybe you should for the 383. Probably worth the money I'd think. What do the heads flow?
02-20-2007, 11:16 AM
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Originally Posted by seawolf06
2.0/1.56 is the largest you can go on stock seats. Any larger and you'll have to get new seats, but maybe you should for the 383. Probably worth the money I'd think. What do the heads flow?
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02-20-2007, 06:26 PM
#9
Originally Posted by speed_demon24
I would get them ported some more too if you have the money, 255cfm isn't going to feed a 383 very well.
--Alan
