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SKU: 5746 | UPC: 725975271469
MAHLE Original Buick Commercial Chassis 1992-1993 Cylinder Head Gasket 5746 Fits Chevy GMC 454 Trucks 1980-2000
MAHLE Original cylinder head gasket part 5746 provides factory-level sealing for 1992-1993 Buick Commercial Chassis and Chevrolet GMC trucks vans Suburbans with 454 V8 engines from 1980-2000. This direct OE replacement stops coolant oil and combustion leaks under extreme heat and pressure. Perfect for engine rebuilds and restorations delivering dependable performance across all listed vehicles.
Key Features
- OE Exact Design: Matches factory dimensions with 4.250 inch bore and 0.051 inch compressed thickness for precise cylinder head alignment on GM big block V8s.
- Graphite Faced Construction: High-strength graphite with perforated steel core resists blowouts and warping for reliable sealing in high-compression 454 engines.
- Multi Port Sealing: Seals 16 coolant oil passages and combustion chambers to prevent cross-contamination in 366 427 454 ci big block applications.
- High Temperature Resistance: Handles 2000°F bursts and maintains seal during extended operation in heavy-duty trucks and vans.
- Precision Engineered: Laser-cut edges and fire ring deliver zero leaks with easy torquing to GM specs of 65 ft-lbs in proper sequence.
Product Notes
- Verify engine displacement of 366 427 454 ci before installation to match listed vehicles.
- No core charge or return needed as direct replacement part.
- Store flat in dry area to prevent folding or creasing gasket material.
Installation Notes
- Professional installation recommended.
- Clean block and head surfaces thoroughly removing all residue and old gasket material.
- Apply Fel-Pro sealant on edges and torque bolts in three stages per GM service manual.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1992-1993 | Buick | Commercial Chassis | Base |
| 1980-1986 | Chevrolet | C20 | Cheyenne Custom Custom Deluxe Deluxe Scottsdale Silverado |
| 1980-1986 | Chevrolet | C20 Suburban | Custom Scottsdale Silverado |
| 1980-1999 | Chevrolet | P30 | Base Step-Van |
| 1980-1986 | Chevrolet | C3500 | Scottsdale Silverado |
| 1980-1986 | GMC | C2500 | Base High Sierra Sierra Sierra Classic Sierra Grande |
| 1980-1986 | GMC | C3500 | Base High Sierra Sierra Sierra Classic Sierra Grande |
| 1980-1994 | GMC | G2500 | Rally Rally Custom Rally STX Vandura |
| 1980-1996 | GMC | G3500 | Magnavan Rally Rally Camper Special Rally Custom Rally STX Vandura Vandura Special |
| 1980-1986 | Chevrolet | K5 Blazer | Custom Deluxe Silverado |
| 1980-1986 | Chevrolet | C10 | Custom Deluxe Cheyenne Scottsdale Silverado |
| 1987-1994 | Chevrolet | Camaro | IROC-Z Z28 Z28 Heritage Edition |
| 1980-1986 | Chevrolet | C10 Suburban | Custom Deluxe Scottsdale Silverado |
| 1994-2000 | Chevrolet | C3500 | Base |
| 1988-1998 | Chevrolet | C1500 | Cheyenne Scottsdale Silverado |
| 1991-1993 | Chevrolet | Caprice | Base Classic Classic LTZ |
| 1990-1992 | Cadillac | Brougham | Base d'Elegance |
| 1980-1989 | GMC | Jimmy | Base High Sierra Sierra Classic Sierra Grande |
| 1996-2002 | Chevrolet | Express 2500 | Base LS |
| 1996-2002 | Chevrolet | Express 3500 | Base LS |
| 1995-1999 | Chevrolet | Tahoe | Base LS LT Z71 |
Why Choose MAHLE?
- Global leader supplying OEM gaskets to GM for over 100 years.
- Built with strict quality controls matching factory specifications.
- Tested for long-term durability in real-world truck and van conditions.
Frequently Asked Questions
-
Q: Does MAHLE 5746 fit 454 V8 in 1980s Chevy C20 trucks?
A: Yes fits 1980-1986 Chevrolet C20 Cheyenne Custom Deluxe Scottsdale Silverado and equivalents with 7.4L engine confirm via VIN. -
Q: What material is the gasket made from?
A: Graphite-faced steel core construction provides robust sealing for high-heat high-pressure environments. -
Q: What is the warranty and install process?
A: Backed by MAHLE limited warranty install on clean surfaces torque to 65 ft-lbs in sequence professional mechanic advised.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Flat box 14 x 14 x 1 inches protective sleeve
- Weight: 0.71 lbs
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