Home » Stroker Kits and Rotating Assemblies

 Checkout
Long Rod Stroker Kit
Product ID: ALongRodStrokerKit

Details 

This is a GN1Performance "LONG ROD STROKER KIT" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. If your looking to be the bully on the track with your turbo 6, this is the kit for you. This kit comes with a 3.625 stroker crank, 6.350 h beam rods and JE Custom pistons.

KEEP IN MIND THIS IS A 4340 CRANK SHAFT, NOT 4140. THIS 4340 MATERIAL WILL SUPPORT 1000-1200 HP EASILY.   

*In some cases, minor machine work may be required depending on your application, by this we mean checking the journal tolerances and rod clearances.

*When building an engine of this nature we HIGHLY recommend you install the 2 Billet Center Main Caps, ARP Main Studs, ARP Head Studs, and a set of Cometic Head Gaskets.  These items will ensure you are assembling a bulletproof bottom end. 

Price: $1,895.00

Stock Stroke Kit
Product ID: AStockStrokeKit

Details 

This is a GN1Performance "STOCK STROKE KIT" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This kit comes with a 3.400 stock stroke crank, 5.970 h beam rods, and JE pistons. This kit is the the ultimate rebuild kit on the market for your buick 3.8 turbo.

 *When building an engine of this nature we HIGHLY recommend you install the 2 Billet Center Main Caps, ARP Main Studs, ARP Head Studs, and a set of Cometic Head Gaskets.  These items will ensure you are assembling a bulletproof bottom end. 

Price: $1,695.00

Stroker Kit
Product ID: AStrokerkit

Details 

This is a GN1Performance "STROKER KIT" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6.The stroker kit you guys have been waitin for. This kit comes with a 3.625 stroker crank, GN1 5.970 h beam rods, and JE pistons. This kit has the extra edge for mid range and top end due to the advange of our 5.970 rods verses the standard 5.960 rods most other kits use. 

KEEP IN MIND THIS IS A 4340 CRANK SHAFT, NOT 4140. THIS 4340 MATERIAL WILL SUPPORT 1000-1200 HP EASILY.   

*In some cases, minor machine work may be required depending on your application, by this we mean checking the journal tolerances and rod clearances.

*When building an engine of this nature we HIGHLY recommend you install the 2 Billet Center Main Caps, ARP Main Studs, ARP Head Studs, and a set of Cometic Head Gaskets.  These items will ensure you are assembling a bulletproof bottom end.

Price: $1,795.00

JE Stock Stroke Pistons
Product ID: BAStockStrokePistons

Details 

This is a set of Stock stroke 3.400 JE Pistons for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6.
 
The overwhelming choice of the world’s fastest Buick engine builders. These pistons are engineered to produce maximum horsepower in extreme boost or nitrous applications. The inverted dome is designed to duplicate the factory compression ratio and the precision CNC machined ring grooves accept 1/16, 1/16, 3/16 rings. 
 
Kit includes 6 Pistons (bore of your choice), .940 pins wth double spiro locks, and rings! 

 
Please specify what bore you would like upon purchasing  
Price: $699.00

JE Stroker Pistons
Product ID: BAStrokerPistons

Details 

This is a set of Stock stroke 3.625 JE Pistons for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6.
 
The overwhelming choice of the world’s fastest Buick engine builders. These pistons are engineered to produce maximum horsepower in extreme boost or nitrous applications. The inverted dome is designed to duplicate the factory compression ratio and the precision CNC machined ring grooves accept 1/16, 1/16, 3/16 rings. 

Kit includes 6 Pistons (bore of your choice), .940 pins wth double spiro locks, and rings! 
 
Please specify what bore you would like upon purchasing  
Price: $749.00

Billet Main Caps
Product ID: BilletMainCaps

Details 

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.
Price: $189.00

Calico Camshaft Bearings
Product ID: CalicoCamshaftBearings

Details 

This is a set of "Calico Coated Clevite Camshaft Bearingsfor a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6
Price: $95.00

Calico Main Bearings
Product ID: CalicoMainBearings

Details 

This is a set of "Standard Calico Coated Clevite Main Bearingsfor a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6
Bearing Size Standard
Cut 10/10
Price: $95.00

Calico Rod Bearings
Product ID: CalicoRodBearings

Details 

This is a set of "Standard Calico Coated Clevite Rod Bearingsfor a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6.
Bearing Size Standard
Cut 10/10
Price: $70.00

Pair of Cometic Head Gaskets .040"
Product ID: CometicHeadGaskets

Details 

This is a pair of "COMETIC HEAD GASKETS" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. The thickness is .040"

Price: $176.00

Pair of Cometic Head Gaskets .060"
Product ID: CometicHeadGaskets060

Details 

This is a pair of "COMETIC HEAD GASKETS" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6The thickness is .060"

 

This is a custom order item and will arrive 2 weeks after initial purchase 

Price: $199.00

Cork Oil Pan Gasket
Product ID: CorkOilPanGasket

Details 

This is a "Gn1Performance Cork .25" Thick Oil Pan Gasketfor a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. The gasket is a custom Gn1Performance product, The cork gasket is 1/4 of an inch think and is the best alternative to the other gaskets on the market. 
Price: $32.00

SFI FlexPlate External Balance
Product ID: FlexPlateExternalBalance

Details 

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.
Price: $169.00

ARP Head Studs
Product ID: StudsHeadARP

Details 

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.
Price: $135.00

ARP Main Studs
Product ID: StudsMainARP

Details 

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.
Price: $109.00

ARP THREAD SEALER
Product ID: THREADSEALERARP

Details 

ARP Thread sealer. These PTFE based sealers have a rust and corrosion inhibitor. In aluminum, steel, stainless steel, and plastic, they deliver a flexible, leakproof seal against coolants, water, gasoline, natural gas, and LPG. These sealers will be effective from -30 to 550 degrees F, and have a sealant range of 10,000 psi.
Price: $16.00



Web Specials

Why Buy From GN1Performance?


Warranty Information