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![Member Exclusive 6020-4040 400 Small Block Oldsmobile Fx Series -12cc Flat Top Oldsmobile Forged Piston Set 4.040 Inch Bore Pin Dia.: 0.98" Comp Height: 1.625" Essentials [REvTwp2t]](https://cdn.shopify.com/s/files/1/0693/1090/6646/files/9e62944b-53a1-461a-9a9a-65b2df3f5dba_a0bb7b2a-1ef6-4a3f-8354-20fbc6ad8fb6.jpg?v=1742240207)
![Member Exclusive 6020-4040 400 Small Block Oldsmobile Fx Series -12cc Flat Top Oldsmobile Forged Piston Set 4.040 Inch Bore Pin Dia.: 0.98" Comp Height: 1.625" Essentials [REvTwp2t]](https://cdn.shopify.com/s/files/1/0693/1090/6646/files/4651ca44-0889-4e16-9fec-013eb87d4e52_78a70e60-9b5c-4216-bd24-6b68a72a7ec8.jpg?v=1742240207)
![Member Exclusive 6020-4040 400 Small Block Oldsmobile Fx Series -12cc Flat Top Oldsmobile Forged Piston Set 4.040 Inch Bore Pin Dia.: 0.98" Comp Height: 1.625" Essentials [REvTwp2t]](https://cdn.shopify.com/s/files/1/0693/1090/6646/files/fd8e0fab-4450-4479-aa71-520c7bb500d0_d52991de-93de-4fd7-a710-0310a51c95cd.jpg?v=1742240207)
![Member Exclusive 6020-4040 400 Small Block Oldsmobile Fx Series -12cc Flat Top Oldsmobile Forged Piston Set 4.040 Inch Bore Pin Dia.: 0.98" Comp Height: 1.625" Essentials [REvTwp2t]](https://cdn.shopify.com/s/files/1/0693/1090/6646/files/pistonbox_86f5daf2-226e-4e15-a8fc-51115a333c01.jpg?v=1742240207)
![Member Exclusive 6020-4040 400 Small Block Oldsmobile Fx Series -12cc Flat Top Oldsmobile Forged Piston Set 4.040 Inch Bore Pin Dia.: 0.98" Comp Height: 1.625" Essentials [REvTwp2t]](https://cdn.shopify.com/s/files/1/0693/1090/6646/files/kbox_cafaece5-1977-419c-9a10-00ac077b5823.jpg?v=1742240207)
![Member Exclusive 6020-4040 400 Small Block Oldsmobile Fx Series -12cc Flat Top Oldsmobile Forged Piston Set 4.040 Inch Bore Pin Dia.: 0.98" Comp Height: 1.625" Essentials [REvTwp2t]](https://cdn.shopify.com/s/files/1/0693/1090/6646/files/b4399078-3eb8-4482-bba6-89b4cf140d28_61822401-26a8-4fea-9570-71c6e6136823.jpg?v=1742240207)
Member Exclusive 6020-4040 400 Small Block Oldsmobile Fx Series -12cc Flat Top Oldsmobile Forged Piston Set 4.040 Inch Bore Pin Dia.: 0.98" Comp Height: 1.625" Essentials [REvTwp2t]
408 Small Block Oldsmobile, FX, Comp Height: 1.625, -12cc Flat Top , PIN: .98", Full-Floating or Press Fit, Ring Groove: 1/16-1/16-3/16" , Stroke: 3.975", ROD: 7, Approx Comp Ratio: 64cc-10.9, 68cc-10.46, 70cc-10.24
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Member Exclusive 6020-4040 400 Small Block Oldsmobile Fx Series -12cc Flat Top Oldsmobile Forged Piston Set 4.040 Inch Bore Pin Dia.: 0.98" Comp Height: 1.625" Essentials [REvTwp2t]
408 Small Block Oldsmobile, FX, Comp Height: 1.625, -12cc Flat Top , PIN: .98", Full-Floating or Press Fit, Ring Groove: 1/16-1/16-3/16" , Stroke: 3.975", ROD: 7, Approx Comp Ratio: 64cc-10.9, 68cc-10.46, 70cc-10.24
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