4340 Steel 3.400 Stock Stroke Crankshaft This is a GN1Performance "STOCK STROKE STEEL CRANK 3.400 " for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6.Crank weight is 43lbs!KEEP IN MIND THIS IS A 4340 CRANK SHAFT, NOT 4140. THIS 4340 MATERIAL WILL... MSRP: Was: Now: $799.00 Choose Options
4340 Steel 3.625 Stroker Crankshaft This is a GN1Performance "STEEL 3.625 STROKER CRANK" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This is a narrow journal width crank.Crank weight is 43lbs!KEEP IN MIND THIS IS A 4340 CRANK SHAFT, NOT... MSRP: Was: Now: $799.00 Choose Options
ARP Flex Plate Bolts This is "A 6 PIECE SET OF ARP FLEX PLATE BOLTS" These high strength 12 point, black oxide bolts are to replace the factory weak flex plate bolts. MSRP: Was: Now: $30.00 Add to Cart
ARP Head Studs This is a Set of "ARP HEAD STUDS" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. MSRP: Was: Now: $135.00 Choose Options
ARP Main Studs This is a Set of "ARP MAIN STUDS" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. MSRP: Was: Now: $109.00 Choose Options
Billet Main Caps Center This is a Set of 2 "Billet Center main caps" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6.***Rest assure, these Main caps are MADE IN USA. The caps are the same caps that have been around for many years... MSRP: Was: Now: $225.00 Choose Options
Billet Main Front Cap This is a "Billet Front main cap " for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. ***Rest assure, these... MSRP: Was: Now: $129.00 Choose Options
Billet Main Rear Cap This is a "Billet Rear Main Cap" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. These caps are the perfect upgrade to a stock Buick block (Especially 450HP and above) to prolong the life of your build. ***Rest... MSRP: Was: Now: $479.00 Choose Options
Calico Main Bearings This is a set of "Standard Calico Coated Clevite Main Bearings" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. MSRP: Was: Now: $195.00 Add to Cart
FlexPlate SFI External Balance This is a "SFI FLEXPLATE" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This flex plate is for an EXTERNAL balance. MSRP: Was: Now: $169.00 Choose Options
FlexPlate SFI Neutral This is a "SFI NEUTRAL FLEXPLATE" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This flex plate is for an INTERNAL balance. MSRP: Was: Now: $169.00 Choose Options
Mahle Main Bearings This is a set of "Standard Mahle Uncoated Main Bearings" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. MSRP: Was: Now: $125.00 Add to Cart
