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Buick 231 Engine (V6, 231 cid, 3.8L)
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This Buick 231/3.8L engine/motor can fit the Regal, Le Sabre, Electra, Riviera, Century, Park Avenue, Skyhawk, Skylark, Reatta, Apollo and some other Buick car and/or truck applications - for more details see your automobile manual.

Buick 231 RWD, 14 bolt pan, block #787.
Engine DescriptionSizeVINPrice/Core
Buick 231 RWD, 14 bolt pan, block #787.

231/3.8LA$1,061/$149
Buick 231 FWD, 3800, Block #029, Head #781, Crank #170
Engine DescriptionSizeVINPrice/Core
Buick 231 FWD, 3800, Block #029, Head #781, Crank #170

231/3.8LK
Buick 231 RWD, 20 bolt pan, block #109. Fits turbo and non turbo. With oil pump kit only.
Engine DescriptionSizeVINPrice/Core
Buick 231 RWD, 20 bolt pan, block #109. Fits turbo and non turbo. With oil pump kit only.

231/3.8LA$1,046/$124
Buick 231 FWD, block # 110, 20 bolt pan, without distributor. With oil pump kit only.
Engine DescriptionSizeVINPrice/Core
Buick 231 FWD, block # 110, 20 bolt pan, without distributor. With oil pump kit only.

231/3.8LB$1,163/$124
Buick 231 RWD, 20 bolt pan, block # 329, 140
Engine DescriptionSizeVINPrice/Core
Buick 231 RWD, 20 bolt pan, block # 329, 140

231/3.8LA$1,061/$149
Buick 231 FWD, 3800, balance shaft, roller cam, block #287, head #2136, crank #737.
Engine DescriptionSizeVINPrice/Core
Buick 231 FWD, 3800, balance shaft, roller cam, block #287, head #2136, crank #737.

231/3.8LK$1,549/$149
Buick 231 RWD, 14 bolt pan, block # 787.
Engine DescriptionSizeVINPrice/Core
Buick 231 RWD, 14 bolt pan, block # 787.

231/3.8LA, 3$1,044/$124
Buick 231 FWD, 3800, balance shaft, roller cam. Block #617, 646, head #723,250 485. With oil pump kit only.
Engine DescriptionSizeVINPrice/Core
Buick 231 FWD, 3800, balance shaft, roller cam. Block #617, 646, head #723,250 485. With oil pump kit only.

231/3.8LC$1,464/$124
Buick 231 FWD, 3800, LN3, balance shaft, roller cam, block #674, Head #619, 136. No vent hole left intake side head.
Engine DescriptionSizeVINPrice/Core
Buick 231 FWD, 3800, LN3, balance shaft, roller cam, block #674, Head #619, 136. No vent hole left intake side head.

231/3.8LL$1,513/$149
Buick 231 Odd Fire, without smog.
Engine DescriptionSizeVINPrice/Core
Buick 231 Odd Fire, without smog.

231/3.8LC$1,233/$124
Buick 231 FWD, roller cam, block #111, 898, 801. No distributor, oil pump driven by splines. 7/16" Dia. dipstick tube, GM dipstick P/N 25531505, tube P/N 25531507. With oil pump kit only.
Engine DescriptionSizeVINPrice/Core
Buick 231 FWD, roller cam, block #111, 898, 801. No distributor, oil pump driven by splines. 7/16" Dia. dipstick tube, GM dipstick P/N 25531505, tube P/N 25531507. With oil pump kit only.

231/3.8L3$1,192/$124
Buick 231 FWD, 3800, balance shaft, roller cam, block #674, head #2136, crank #737.
Engine DescriptionSizeVINPrice/Core
Buick 231 FWD, 3800, balance shaft, roller cam, block #674, head #2136, crank #737.

231/3.8LL$1,549/$149
Buick 231 Odd Fire, without smog.
Engine DescriptionSizeVINPrice/Core
Buick 231 Odd Fire, without smog.

231/3.8LC$1,233/$124
Buick 231 FWD, roller cam, block #111, 898, 801, no distributor, oil pump driven by splines. 3/8" Dia. dipstick tube, GM dipstick P/N 25524028, tube P/N 2557337. With oil pump kit only.
Engine DescriptionSizeVINPrice/Core
Buick 231 FWD, roller cam, block #111, 898, 801, no distributor, oil pump driven by splines. 3/8" Dia. dipstick tube, GM dipstick P/N 25524028, tube P/N 2557337. With oil pump kit only.

231/3.8L3$1,192/$124
Buick 231 FWD, 3800, balance shaft, roller cam, block #134, head #2136, 3/4" vent hole on left intake side head.
Engine DescriptionSizeVINPrice/Core
Buick 231 FWD, 3800, balance shaft, roller cam, block #134, head #2136, 3/4" vent hole on left intake side head.

231/3.8LL$1,549/$149
Buick 231 FWD, 3800 Series II, balance shaft, roller cam, block #287, crank #2170. Cross bolted mains.
Engine DescriptionSizeVINPrice/Core
Buick 231 FWD, 3800 Series II, balance shaft, roller cam, block #287, crank #2170. Cross bolted mains.

231/3.8LK
Buick 231 FWD, block #139, 110, 333. 20 bolt pan, uses distributor. With oil pump kit only.
Engine DescriptionSizeVINPrice/Core
Buick 231 FWD, block #139, 110, 333. 20 bolt pan, uses distributor. With oil pump kit only.

231/3.8L3$1,061/$124
Buick 231 FWD, 3800, balance shaft, roller cam, block #674, head #619, 136, 3/4" vent hole on left intake side.
Engine DescriptionSizeVINPrice/Core
Buick 231 FWD, 3800, balance shaft, roller cam, block #674, head #619, 136, 3/4" vent hole on left intake side.

231/3.8LL$1,513/$149
Buick 231 RWD, F body, balance shaft, roller cam, block #287, head #478, crank #2170, Cross bolted mains, 8 bolt flywheel.
Engine DescriptionSizeVINPrice/Core
Buick 231 RWD, F body, balance shaft, roller cam, block #287, head #478, crank #2170, Cross bolted mains, 8 bolt flywheel.

231/3.8LK
Buick 231 Even fire. Head #051, 170, 661, 722, without smog.
Engine DescriptionSizeVINPrice/Core
Buick 231 Even fire. Head #051, 170, 661, 722, without smog.

231/3.8LA$1,061/$124

For troubleshooting tips and repair information on the Buick 231/3.8L engine, please visit our Information page.

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