Cometic PRO2020T-830-051 Top-End Gasket Kit for 86-92 Toyota Supra / Cressida

Vehicle Fitment

• 1986-1992 Toyota Supra (Base & Turbo) (7M-GE / 7M-GTE 3.0L I6, RWD / Naturally Aspirated & Turbocharged)
• 1989-1992 Toyota Cressida (Base & Luxury) (7M-GE / 7M-GTE 3.0L I6, RWD / Naturally Aspirated & Turbocharged)

Fitment Notes

• Not for non-7M engines (e.g. 1JZ, 2JZ); ensure your engine is 7M-GE or 7M-GTE.
• Bore size must be ~83 mm; this kit uses 83-mm bore head gasket (the "-830" designation) rather than stock 84 mm in some cases.
• Thickness of head gasket is .051"; this affects compression ratio - verify piston-to-head clearance and head surface condition.
• Does not include bottom-end gaskets (e.g. oil pan, crank seals) or head bolts/studs.

Features

• MLS (Multi-Layer Steel) head gasket to handle thermal stress and high compression/turbo use.
• 83 mm bore variant for those using undersize or specific 7M rebuilds needing bit of bore correction.
• .051" compressed thickness to maintain compression ratio close to stock for 7M applications.
• Includes camshaft seals (front & rear) for both cam banks.
• Includes upper timing cover seal to prevent leaks there.
• StreetPro kit design - balances cost and performance for street and mild performance builds.
• Quality materials: MLS, fiber seals, etc., to ensure durability and oil seal integrity.
• Factory application for both naturally aspirated (GE) and turbocharged (GTE) versions of the 7M engine in the listed years.

Specifications

• Head gasket bore: **83.0 mm**
• Head gasket compressed thickness: **0.051 in**
• Material: Multilayer Steel (MLS) for head; high-quality rubber/oil-resistant seals for cam and timing cover.
• Engine: 3.0 L inline-6, 7M-GE (naturally aspirated) & 7M-GTE (turbocharged); RWD layout.
• Fitment: front head gasket covers all 6 cylinders; includes front cam & rear camshaft seals + upper timing cover seal.
• Vehicle years confirmed: **1986 through 1992** for Supra; **1989 through 1992** for Cressida.
• Fitment confirmed through **1992**. **1993+ unconfirmed** for this variant.:contentReference[oaicite:0]{index=0}

Included Components

• 1x MLS Cylinder Head Gasket (83 mm bore, .051" compressed thickness)
• 2x Camshaft Seals (front & rear)
• 1x Upper Timing Cover Seal

Product Description

The Cometic PRO2020T-830-051 StreetPro Top-End Gasket Kit is tailored for Toyota's 7M-series engines, specifically for Supra and Cressida models from 1986-1992 (Supra) and 1989-1992 (Cressida). This particular variant uses an **83 mm bore head gasket** with a **.051-inch compressed thickness**, giving a tighter fit for rebuilds with undersized or specific modifications. With MLS head gasket construction and inclusion of front/rear cam seals and the timing cover seal, this kit ensures comprehensive top-end sealing - especially important for turbocharged and high heat operation in the GTE version.

This kit is ideal if your 7M engine requires the 83 mm bore size rather than the standard 84 mm - common in re-bore or ported/reworked heads or when using specific piston setups. Proper prepare-and-verify things like head/block surface flatness, cam cover mating surfaces, and torque-sequence are critical. Note that fitment is confirmed through **1992**. Models after 1992 or engines with other bore sizes remain unconfirmed for this PRO2020T-830-051 variant. Ensure all engine trim & version alignment before installation.