Product Summary

Center Bolt Valve Cover Mounting Style

  • Slant-Edge Style Center Bolt
  • Lustrous Chrome Finish
  • Made from High-Quality Die Cast Aluminum
  • Recessed Red/Black CHEVROLET and Bowtie Emblems
  • Fits GM LS Series Engines
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Key Specs

MFG. Part #141-265
BrandProform
Valve Cover Mounting StyleCenter Bolt
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Proform 141-265 Details

Hurray, the wait is over! Through innovative engineering, PROFORM has developed a valve cover that will take your generic looking stock LS engine, and give it a totally personalized look. These new valve covers are taller than stock valve covers, and can accommodate a wide variety of large valve train applications. These valve covers are available in 5 different styles, which include raised and recessed emblems. Unique mounting studs, and oil restricting baffles are included. Threaded mounting holes for Integrated Ignition Coil Bracket included. The passenger side valve cover has an oil filler hole. Sold in pairs. U.S. Pat. D657,798. You will need to purchase rubber gaskets for these valve covers separately. We recommend Fel-Pro part no. VS 50504 R. Internal Clearance note. The following rocker configurations will require the valve cover to be slightly modified: Jesel part numbers: KSS-317070, KSS-317575, and KSS-318080. Attention LSX-DR cylinder head owners: these valve covers will fit LSX-DR heads and clear the shaft mounted valvetrain. The mounting bolts included with these LS covers are not compatible with the LSX-DR cylinder heads. LSX-DR owners will need to purchase a LSX-DR mounting bolt kit.

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.

Proform 141-265 Specifications

KEY SPECS
MFG. Part #141-265
BrandProform
Valve Cover Mounting StyleCenter Bolt

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