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#10
12-13-2020, 10:52 AM
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When I had my original 6X-8s form my 78 and a set of 6X-4s that are on the 81's 400 I did not measure depth, chambers looked pretty similar but the OD of the chamber was smaller on the -4 than the -8. Very noticeable when you laid a head gasket on them. So not sure if they could have done the same on some 48s and be a subtle change.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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