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Product Summary

Perimeter Bolt Valve Cover Mounting Style, Aluminum

  • Fits 1958-1966 Chevrolet 348 or 409 "W-block" engines
  • Aluminum construction
  • Polished finish
  • Mounting holes of all Offenhauser valve covers are drilled standard and to factory specifications
See more details

Key Specs

MFG. Part #5042
BrandOffenhauser
Valve Cover Mounting StylePerimeter Bolt
Material TypeAluminum
FinishPolished
See more specs

Need To Know

Quick and Easy Returns

Return Policy

Offenhauser 5042 Details

By Offenhauser. These rugged, cast aluminum Offy valve covers give classic good looks to lots of Hot Rod power plants! Fits 1958-1966 Chevrolet 348 or 409 "W-block" engines in both passenger cars and trucks.

The sides, ends and fins have all received the "polisher's touch".

NOTE:   The mounting holes of all Offenhauser valve covers are drilled standard and to factory specifications. Sometimes variations in the heads may require a slight enlarging of the holes.

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.

Offenhauser 5042 Specifications

KEY SPECS
MFG. Part #5042
BrandOffenhauser
Valve Cover Mounting StylePerimeter Bolt
Material TypeAluminum
FinishPolished
GENERAL
Sold in QuantityPair

Ratings & Reviews

4

3 Reviews

Overall Assessment

Customers appreciate the appealing aesthetics and polished finish of the product, making it a great addition to their automotive projects. However, concerns were raised about the alignment of the holes, leading to some necessary adjustments, despite its cost. Still, a number of customers are happy with its performance, considering it as a great product. It stands out for its quality and practicality despite these minor hitches, with an overall positive recommendation from users.

4

3 reviews

5

2

4

0

3

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2

1

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Filter by Ratings

Beautiful valve covers and nice polish job

5.0

5 years ago

Studzy

Florence nj

Verified

Will look great on my 33 Ford project:)

Would Recommend

Looked great but holes did not line up

2.0

6 years ago

348

Ohio

Verified

I like the Look. After delivery went to install, holes did not line up. Called Speedway said i could send them back but did not want to return and still have same problem. After several hours with Dremel got them to work. For the Money thought they would have been better! PS there was a piece of paper said might need alterations

Yes

5.0

6 years ago

Phillydog

Lubbock TX.

Verified

Valve Covers are Great.Yes

Would Recommend

Showing 3 of 3 reviews

Fitment

  • Chevy 348

  • Chevy 348

  • Chevy 409

  • Chevy 409

  • Chevy 348

  • Chevy 348

  • Chevy 409

  • Chevy 409

  • Chevy 348

  • Chevy 348

  • Chevy 409

  • Chevy 348

  • Chevy 348

  • Chevy 409

  • Chevy 348

  • Chevy 348

  • Chevy 409

  • Chevy 348

  • Chevy 348

  • Chevy 409

  • Chevy 348

  • Chevy 348

  • Chevy 409

  • Chevy 348

  • Chevy 348

  • Chevy 409

  • Chevy 348

  • Chevy 348

  • Chevy 348

  • Chevy 348

  • Chevy 409

  • Chevy 409

  • Chevy 348

  • Chevy 348

  • Chevy 409

  • Chevy 348

  • Chevy 348

  • Chevy 409

  • Chevy 348

  • Chevy 348

  • Chevy 409

  • Chevy 348

  • Chevy 348

  • Chevy 409

  • Chevy 348

  • Chevy 348

  • Chevy 409

  • Chevy 348

  • Chevy 348

  • Chevy 409

  • Chevy 348

  • Chevy 348

  • Chevy 409

  • Chevy 348

  • Chevy 348

  • Chevy 409

  • Chevy 348

  • Chevy 348

  • Chevy 348

  • Chevy 409

  • Chevy 348

  • Chevy 348

  • Chevy 348

  • Chevy 348

Customer Impersonation Script