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Have for sale a brand new set of 3800 N.A. heads casting # 4781. These are brand new , never run heads with the manufactured date printed on both heads 11/15/96. Both heads have a 3 angled valve job done with the intakes back cut with a 45 degree top cut angle. Both heads have been sitting around and should be taken apart and cleaned and valve guides oiled. Asking $150 for both plus shipping. See attached pictures.
Can you get a pic of the #4781 casting, because they didn't have the #4781 heads on the F-bodies until 1998? I would be interested but would need to see the casting, have they been milled at all also?
08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine
Heads have not been milled to my knowledge. See picutures attached for more info. I bought a lot of heads form one of the engineers who helped desgin the 3800 series 11 V6 engine.
Can you get a pic of the #4781 casting, because they didn't have the #4781 heads on the F-bodies until 1998? I would be interested but would need to see the casting, have they been milled at all also?
The #4781 castings are th newer castings the old castings were redone becuase the other castings pre 98' had flaws in them , cracking and valve guides braking, I had my engine rebuilt and while driving it less then 100 miles the #1 valve guide broke completly off , I was lucky it did't do much arm , just smoke through the exhaust, replced the heads for another $350(mechainc gave me some newer heads he had lying around, so just paid labor.
08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine
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