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#21
06-02-2021, 07:18 AM
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Ok, that .021” is dead nuts minimum and the true amount you have without factoring in the expansion from heat is then a factor of valve guide clearance and valve lift.
I would confirm what you have now for valve guide clearance and keep a eye on that thru the run life of the motor. In terms of the valve inclination angle used let’ us keep in mind that 66 was not the dead cut off for the early heads. The early 1967 2bbl 400 motors in the B body cars did not use the new 670 casting with its 14 degree valve angle,
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#22
06-02-2021, 10:31 AM
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Removing the springs on one cyl and "jiggling" them in their guides, off their seats would tell real fast how exactly close the valve heads, truly are
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1977 Black Trans Am 180 HP Auto, essentially base model T/A. I'm the original owner, purchased May 7, 1977. Shut it off Shut it off Buddy, I just shut your Prius down... 
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