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Choose OneEngine Assembly for 1986 Pontiac Bonneville
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There are 5 choices for the 1986 Pontiac Bonneville Engine Assembly !!!
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6 Cyl, 262 cid (4.3L, VIN Z, 8th digit)
8 Cyl, 305 cid (5.0L, VIN H, 8th digit)
8 Cyl, 307 cid (5.0L, VIN Y, 8th digit) casting iron exhaust manifolds
8 Cyl, 307 cid (5.0L, VIN Y, 8th digit) stainless steel exhaust manifolds
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