Product Summary

283, 302, 305, 307, 327, 350, 400, Cast Aluminum, Black

  • Specifically designed for the 1958-1986 Small Block Chevy engine
  • Made from lightweight cast aluminum with a black wrinkle finish
  • Both covers have oil baffles to reduce foaming
  • Engineered to reduce the chance of warping the valve cover flange and oil leaks
  • It is 3-1/2” tall and comes with pre-installed internal oil baffles

Key Specs

MFG. Part #241-242
Valve Cover HeightTall
Valve Cover Mounting StylePerimeter Bolt
Material TypeCast Aluminum

Need To Know

This Product Will Ship Free

Shipping Policies & FAQs

Quick and Easy Returns

Return Policy

Holley 241-242 Details

Holley is pleased to offer their Vintage Series Small Block Chevy Valve Covers.

These new products are the first of the Vintage Series family of die-cast aluminum dress up products featuring a classically inspired finned design and a retro-style Holley script brand mark.


  • Designed to fit all 1958-86 Small Block Chevy engines with perimeter bolt patterns
  • Die-cast aluminum construction ensures high detail and reduces the opportunity for warping of the valve cover flange and oil leaks
  • 3-1/2” tall with pre-installed internal oil baffles (oil fill and PCV grommets also included)


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.

Holley 241-242 Specifications

MFG. Part #241-242
Valve Cover HeightTall
Valve Cover Mounting StylePerimeter Bolt
Material TypeCast Aluminum
Valve Cover Top StyleFinned
Breathers IncludedNo
Gaskets IncludedNo
Grommets IncludedYes
Hardware IncludedYes
GTIN Code090127724590
Sold in QuantityPair
NotesBoth covers have oil baffles.