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#21
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Was also initially thinking a storage problem, but doesn't it look like the associated chamber in Post 1, Photo 4 looks like it has been stripped of the soot that the adjacent chamber shows? Steam cleaned while running and then left to age after heads were pulled?
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Mick Batson 1967 original owner Tyro Blue/black top 4-speed HO GTO with all the original parts stored safely away -- 1965 2+2 survivor AC auto -- 1965 Catalina Safari Wagon. |
#22
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Those so called bliggers near the side of the valve guide are just the casting imperfections, and I have seen far worse then that !!
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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! |
#23
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Good Craftsmanship with the chamber grinding. Wonder how they look after cooking and shot-peen?
I have ground down those chamber brows for the purpose of unshrouding to improve dry-flow. "Performance" has been good but a mysterious pig-rich carbon might be a consequence. The image shows a step at the sealing surface, which i have blended moreso at the SIDES to improve side flow. Would be a 1st to see such a factory chamber-mod, so upsidedown Cast number might indicate such. Last edited by Half-Inch Stud; 08-09-2021 at 07:23 AM. Reason: detail |
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