HKS 2301-RM007 1.6mm stopper head gasket 4G63T
Click to zoom in

HKS 89-99 Eagle Talon TSI 4G63BT 1.6mm Stopper Head Gasket (86mm Bore/8.3 CR)

HKS
HKS2301-RM007
00874596006643
Head Gaskets
4 Units In Stock - Ships Next Business Day
$ 320.00
FREE Ground Shipping!
$ 320.00

SKU: 2301-RM007 | UPC: 00874596006643

HKS 1989-1999 Eagle Talon TSi Plymouth Laser RS Mitsubishi Eclipse GST GSX 4G63T 1.6mm Stopper Head Gasket 86mm Bore 8.3 CR

The HKS 1.6mm Stopper-Type Metal Head Gasket supports high-horsepower 4G63T engines in 1989-1999 Eagle Talon TSi Plymouth Laser RS and Mitsubishi Eclipse GST GSX models. This gasket uses exclusive stopper-layer design for reliable sealing and combustion chamber stability at extreme boost pressures beyond stock MLS limits. Precision 86mm bore and 1.6mm compressed thickness target 8.3:1 static compression ratio with stock pistons on 500+ WHP drag and street builds.

Key Features

  • Stopper-Type Construction: Provides combustion stability and sealing under cylinder pressures on 1000+ HP 4G63T engines
  • 1.6mm Thickness: Delivers 8.3:1 compression ratio using stock pistons for boosted setups
  • 86mm Bore: Matches stock bores or up to +1mm oversize cylinders without modification
  • Nitrile Rubber Coated Steel: Ensures repeat torque cycles and durability in high-heat high-pressure conditions
  • Made in Japan: Backed by HKS limited lifetime warranty to original purchaser against defects

Product Notes

  • Fits all 1989-1999 DSM 4G63T 6-bolt and 7-bolt variants
  • Designed for 500+ WHP applications with proper supporting mods
  • Pair with HKS or OEM head bolts ARP studs for installation

Installation Notes

  • Professional installation recommended.
  • Resurface deck and head to Ra 30 or better flatness.
  • Torque to HKS spec 90-100 ft-lb using ARP studs in stages.

This Part Fits

Year Make Model Submodel
1989-1994 Eagle Talon TSi 4G63T AWD
1989-1994 Plymouth Laser RS Turbo 4G63T
1990-1994 Mitsubishi Eclipse GST 4G63T
1990-1994 Mitsubishi Eclipse GSX 4G63T AWD
1995-1999 Mitsubishi Eclipse GST 4G63T
1995-1999 Mitsubishi Eclipse GSX 4G63T AWD

Why Choose HKS?

  • Proven track record on global 1000+ HP 4G63T drag and street cars
  • Exclusive stopper technology handles boost levels stock gaskets cannot
  • Precision manufacturing ensures consistent performance and fitment

Frequently Asked Questions

  • Q: Does it fit 6-bolt and 7-bolt heads?
    A: Yes fits all 1989-1999 DSM 4G63T 1G and 2G 6-bolt 7-bolt same gasket design
  • Q: What torque specs apply?
    A: Use HKS recommended 90-100 ft-lb in stages with ARP head studs or HKS OEM bolts
  • Q: Is resurfacing required?
    A: Yes achieve Ra 30 or better surface finish on block deck and cylinder head

Shipping & Handling

  • Method: UPS or FedEx Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Heavy-duty box with custom foam protection 10x8x2 inches
  • Weight: 1.0 lb

Request For Information

Have questions about ? Fill out the form below and we'll get back to you by the next business day.
Engine

Engine

Shop engine parts, oil catch cans, engine cooling upgrades, thermostats, thermostat housings, radiators, coolant accessories, supercharger pulleys, idler pulleys, tensioner pulleys, throttle bodies, engine covers, fuse box covers, cap covers, valve covers, oil system parts, ignition parts, sensors, gaskets, fuel delivery parts, and engine bay dress-up accessories at Black Ops Auto Works. This collection is built for performance vehicles, trucks, SUVs, muscle cars, boosted builds, HEMI platforms, Hellcat builds, Trackhawk SUVs, RAM TRX trucks, LS-powered builds, and high-horsepower street or track applications. Whether you are improving oil control, reducing heat soak, upgrading cooling, supporting higher boost, cleaning up the engine bay, replacing worn engine components, or preparing a street car for harder driving, this collection helps you shop engine parts by brand, category, vehicle platform, and performance goal. Shop Engine Parts by Category Browse engine upgrades and replace...

View Engine Products
Head Components

Head Components

This collection covers cylinder head components including head gaskets, head studs, and complete head assemblies for performance engine builds and high-output applications, serving vehicle owners and builders who need reliable components for maintenance, restoration, or performance enhancement. Arp head studs, cometic head gaskets, and edelbrock or afr cylinder heads are foundational brands in performance cylinder head work, providing buyers with the confidence that comes from sourcing from recognized suppliers with documented fitment data. Proper head bolt torque sequence and head gasket compression thickness selection directly affect combustion sealing integrity and engine longevity, and selecting the correct specification for the specific application is the most important step before any installation. Whether the goal is restoring OEM function, addressing a worn component, or improving beyond factory performance, this collection addresses each need with confirmed-fit parts. Popul...

View Head Components Products
Head Gaskets

Head Gaskets

This collection covers cylinder head components including head gaskets, head studs, and complete head assemblies for performance engine builds and high-output applications, serving vehicle owners and builders who need reliable components for maintenance, restoration, or performance enhancement. Arp head studs, cometic head gaskets, and edelbrock or afr cylinder heads are foundational brands in performance cylinder head work, providing buyers with the confidence that comes from sourcing from recognized suppliers with documented fitment data. Proper head bolt torque sequence and head gasket compression thickness selection directly affect combustion sealing integrity and engine longevity, and selecting the correct specification for the specific application is the most important step before any installation. Whether the goal is restoring OEM function, addressing a worn component, or improving beyond factory performance, this collection addresses each need with confirmed-fit parts. Popul...

View Head Gaskets Products
HKS

HKS

HKS is a Japanese manufacturer of premium performance parts founded in 1973 that has been at the forefront of turbocharged engine development, producing turbochargers, exhaust systems, engine management, intercoolers, and supporting performance components for some of the most iconic Japanese sports cars ever built. The brand's GT and GTIII turbocharger series, Super Sequential Blow Off Valves, and Racing Suction intake kits are recognized globally as benchmark-quality products that combine Japanese manufacturing precision with decades of motorsport development experience. HKS products are particularly well-known in the Toyota Supra, Mitsubishi Evo, Subaru STI, Nissan GT-R, and Honda NSX communities, where the brand's heritage in building the world's fastest versions of these cars has created a loyal following among enthusiasts who want the best available components. From a simple racing suction kit to a complete GT turbo with intercooler and ECU tune, HKS provides an end-to-end perf...

View HKS Products
Military & First Responder Discounts

Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

Learn More & Apply

Your cart

×