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#11
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Open
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#12
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According to a 1987 General Motors Performance Parts catalog I have: ID # 3947886 is part # 3959105 Piston assembly STD, 427 CID, Chevrolet 68-69 W/H.D. & Aluminum Block (RPO L-88 & ZL-1) 12.5:1 Open Chamber, Forged Aluminum, Floating Pin Design, Use retainer P/N 3942423 (I.D.3947886 or 3959108) I hope this helps.
Bill |
The Following User Says Thank You to Big Block Bill For This Useful Post: | ||
the427king (02-10-2022) |
#13
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Thank you BB Bill....
RA |
#14
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Your welcome, glad to help.
Bill |
#15
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Open chamber.
__________________
Ebay Auctions http://www.ebay.com/sch/427-king/m.h...=16&_rdc=1 No Fisher priced toys here |
#16
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1967 1st design L88 was closed chamber.
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#17
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Thanks, Im looking for 1st design pistons that work with the 3919842 aluminum heads. It has around 106.8cc closed chamber head. I thought the combination could work one way, but not the other. I donÂ’t think open chamber pistons will work with a close chamber head.
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#18
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No they will not
Bill |