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6 Cyl, 231 cid (3.8L, VIN 3, 8th digit)
8 Cyl, 307 cid (5.0L, VIN Y, 8th digit)
- casting iron exhaust manifolds
- stainless steel exhaust manifolds

Engine Assembly for 1987 Pontiac Bonneville

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There are 3 choices for the 1987 Pontiac Bonneville Engine Assembly !!!
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6 Cyl, 231 cid (3.8L, VIN 3, 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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