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yellaterra heads
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simonbee Offline
#1 Posted : Sunday, 11 November 2012 8:34:32 PM(UTC)
simonbee

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How can i tell if i have yella terra heads in my 350 Chev i have yella terra rockers 5001 but not sure what the heads are can i tell by serial numbers on the head.
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HK1837 Offline
#2 Posted : Sunday, 11 November 2012 8:47:04 PM(UTC)
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Post up the casting number off the heads.
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If we all had the same (good) taste, who would buy all the Fords?
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simonbee Offline
#3 Posted : Sunday, 11 November 2012 9:04:10 PM(UTC)
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the casting numbers on the head are as follows
3947041
L2 8
GM 5
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HK1837 Offline
#4 Posted : Monday, 12 November 2012 12:52:20 AM(UTC)
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Those are a good head, could be had in 1.94/1.5" valves or 2.02/1.6" valves. Used on higher performance engines. Being early 1968 cast they are probably off a 300hp 327 if they are 1.94/1.5" valves. If 2.02/1.6" possibly Z28 290hp 302 or 325hp 327. If they are Tonnawanda cast (big T on them) and being in Australia they are a good chance to be off a HT or early HG GTS350 manual (300hp 350).
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If we all had the same (good) taste, who would buy all the Fords?
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simonbee Offline
#5 Posted : Tuesday, 13 November 2012 5:11:13 AM(UTC)
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Hi HK yes the heads do have the big T on them so are the good heads
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chrome yella Offline
#6 Posted : Tuesday, 13 November 2012 7:49:27 AM(UTC)
chrome yella

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yes they are an excellent early head, i have a set of crane fireball 041,s with 2.02 intakes and they perform great, if there standard and have an x mark then there the hi-flow casting
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