Quote:
Originally Posted by 68WarDog
You could swap those desirable heads for some 6x4s. Those 13s and 62s are good 400 builds heads
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Agree. I have a set of station wagon ‘77 400 6x heads on my 455 and it’s 9.3 : 1, plus they’re screw in studs (aren’t 4x press ins ?)
The difference between this set up and the factory 29,000 mile stock 7.6 : 1 455 is night and day.
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Two 1975 455 Grandvilles &
'79 455 Trans Am
‘69 Camaro SS 396/375 (owned since ‘88)
‘22 Toyota Sequoia V8
‘23 Lexus LS500 awd
‘95 Ford F-super duty 4wd 7.3 p-stroke
& countless Jeeps & off road vehicles.
