Product Summary

  • Fits 1985-1997 Buick, Cadillac, Chevrolet, GMC, Oldsmobile and Pontiac applications
  • Engine applications: 4.3L/5.0L/5.7L V8, 4.3L V6
  • Viton; 1 piece Offset lip
  • Superior design and materials of seals
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Key Specs

MFG. Part #S5091
BrandEnginetech
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Need To Know

Quick and Easy Returns

Return Policy

Enginetech S5091 Details

SBC 350 Rear Main Seal, 1pc Offset Lip, Viton for 5.7L 350ci V8 applications — Chevrolet, GMC, Pontiac, 1985-1997. Check the fitment listing for the full vehicle coverage before ordering.

Features:

  • Consolidated sets save you money
  • Designed specifically for the engine rebuilder
  • Simple part numbering system
  • Superior design and materials of seals
  • Superior packaging helps you stay organized

Interchange Part #'s

  • FEL-PRO BS40520
  • Victor Reinz JV554
  • Detroit Diesel 17195
  • Detroit Diesel 17275

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Enginetech S5091 Specifications

KEY SPECS
MFG. Part #S5091
BrandEnginetech

Questions & Answers

Fitment

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • 1-Piece Rear Main 305 LB9

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Vortec L35 90-Degree Chevy

  • Vortec L35 90-Degree Chevy

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Vortec L35 90-Degree Chevy

  • Vortec L35 90-Degree Chevy

  • Vortec LU3 90-Degree Chevy

  • Gen 1 LG3 Small Block Chevy

  • 1-Piece Rear Main 305 LG4

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 LG3 Small Block Chevy

  • Gen 1 LG3 Small Block Chevy

  • 2-Piece Rear Main 305 LG4

  • 2-Piece Rear Main 305 LG4

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LE9 Small Block Chevy

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L35 90-Degree Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L35 90-Degree Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec LG3 90-Degree Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LG3 Small Block Chevy

  • 2-Piece Rear Main 305 LG4

  • 2-Piece Rear Main 305 LG4

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 LG3 Small Block Chevy

  • 2-Piece Rear Main 305 LG4

  • 2-Piece Rear Main 305 LG4

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LG3 Small Block Chevy

  • 2-Piece Rear Main 305 LG4

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LG3 Small Block Chevy

  • 2-Piece Rear Main 305 LG4

  • 2-Piece Rear Main 305 LB9

  • 2-Piece Rear Main 305 LG4

  • Gen 1 L69 Small Block Chevy

  • 1-Piece Rear Main 305 LB9

  • 2-Piece Rear Main 305 LG4

  • 1-Piece Rear Main 305 LB9

  • Gen 1 L98 Small Block Chevy

  • Gen 1 LG3 Small Block Chevy

  • 2-Piece Rear Main 305 LG4

  • 2-Piece Rear Main 305 LG4

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 LG3 Small Block Chevy

  • Gen 1 L98 Small Block Chevy

  • Gen 1 LG3 Small Block Chevy

  • 2-Piece Rear Main 305 LG4

  • 2-Piece Rear Main 305 LG4

  • Gen 1 L03 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L03 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Vortec L35 90-Degree Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Vortec L35 90-Degree Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Vortec L35 90-Degree Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LG3 Small Block Chevy

  • 2-Piece Rear Main 305 LG4

  • 2-Piece Rear Main 305 LG4

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L03 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 LG3 Small Block Chevy

  • 2-Piece Rear Main 305 LG4

  • 2-Piece Rear Main 305 LG4

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 LG3 Small Block Chevy

  • Gen 1 LG3 Small Block Chevy

  • 2-Piece Rear Main 305 LG4

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Vortec L35 90-Degree Chevy

  • Gen 1 LG3 Small Block Chevy

  • 2-Piece Rear Main 305 LG4

  • Gen 1 LG3 Small Block Chevy

  • Gen 1 LG3 Small Block Chevy

  • 2-Piece Rear Main 305 LG4

  • 2-Piece Rear Main 305 LG4

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 LG3 Small Block Chevy

  • 2-Piece Rear Main 305 LG4

  • 2-Piece Rear Main 305 LG4

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Vortec L35 90-Degree Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LG3 Small Block Chevy

  • Gen 1 LG3 Small Block Chevy

  • 2-Piece Rear Main 305 LG4

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LG3 Small Block Chevy

  • 2-Piece Rear Main 305 LG4

  • 2-Piece Rear Main 305 LG4

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LG3 Small Block Chevy

  • 2-Piece Rear Main 305 LG4

  • 2-Piece Rear Main 305 LG4

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LG3 Small Block Chevy

  • Gen 1 LG3 Small Block Chevy

  • 2-Piece Rear Main 305 LG4

  • Gen 1 LG3 Small Block Chevy

  • 2-Piece Rear Main 305 LG4

  • 2-Piece Rear Main 305 LG4

  • Gen 1 L03 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L03 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 LG3 Small Block Chevy

  • Gen 1 LG3 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Vortec L35 90-Degree Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Vortec L35 90-Degree Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L05 Small Block Chevy

  • Vortec L35 90-Degree Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LE9 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Vortec L35 90-Degree Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L98 Small Block Chevy

  • Gen 1 LE9 Small Block Chevy

  • Gen 1 LE9 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L03 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L98 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Vortec L35 90-Degree Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Vortec L35 90-Degree Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L98 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L98 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Vortec LU2 90-Degree Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Vortec LU2 90-Degree Chevy

  • Vortec LU2 90-Degree Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Vortec LU2 90-Degree Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Vortec L35 90-Degree Chevy

  • Vortec LU3 90-Degree Chevy

  • Vortec L35 90-Degree Chevy

  • Vortec L35 90-Degree Chevy

  • Vortec LU3 90-Degree Chevy

  • Vortec LU3 90-Degree Chevy

  • Vortec L35 90-Degree Chevy

  • Vortec LU3 90-Degree Chevy

  • Vortec L35 90-Degree Chevy

  • Vortec LU3 90-Degree Chevy

  • Vortec LU3 90-Degree Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Vortec L35 90-Degree Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L69 Small Block Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 LB4 90-Degree Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L98 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L98 Small Block Chevy

  • Gen 1 L05 Small Block Chevy

  • Gen 1 L98 Small Block Chevy

  • Vortec LU2 90-Degree Chevy

  • Vortec L35 90-Degree Chevy

  • 305 Chevy Small Block V8

  • 2-Piece Rear Main 305 LB9

  • 2-Piece Rear Main 305 LG4

  • Gen 1 L69 Small Block Chevy

Customer Impersonation Script