What are the casting numbers for 1957 283 heads?
02-18-2017, 02:32 PM
#1
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What are the casting numbers for 1957 283 heads?
For both the hipo heads and low perf. heads
02-18-2017, 02:49 PM
#3
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3740997 for all engines except the 283/283 FI, which used 3731539 heads.
02-18-2017, 03:13 PM
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And the hipo has the single pyramid marking on the front of the head?
02-18-2017, 04:36 PM
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02-18-2017, 05:17 PM
#6
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Crazy that the 539 heads are the cheaper ones, the 997 heads will set you back a couple grand or more.
02-18-2017, 05:59 PM
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02-18-2017, 06:06 PM
#8
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EDIT:
Only if they are either the single tower or twin tower markings. single being 1957 Corvette 270 HP and twin being 1956 Corvette 2X4-bbl 283; 1958 passenger car FI
Only if they are either the single tower or twin tower markings. single being 1957 Corvette 270 HP and twin being 1956 Corvette 2X4-bbl 283; 1958 passenger car FI