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Mr. Gasket Headlock Locking Header Bolts, 3/8-16 X 3/4 Inch, Set of 16 2231G

Mr. Gasket Headlock Locking Header Bolts, 3/8-16 X 3/4 Inch, Set of 16 2231G
Mr. Gasket Headlock Locking Header Bolts, 3/8-16 X 3/4 Inch, Set of 16 2231GMr. Gasket Headlock Locking Header Bolts, 3/8-16 X 3/4 Inch, Set of 16 2231GMr. Gasket Headlock Locking Header Bolts, 3/8-16 X 3/4 Inch, Set of 16 2231G
$84.99 ea
NEWARRIVING SOONEstimated Ship Date 12/10/2024 (If Ordered Today)100 Available from HOLLEY PERFORMANCE PRODUCTS as of 11/22/2024
Model: 4011024
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
STANDARD
DELIVERY
STORE PICKUP
[More Info]
Headlock™ Bolts eliminate the need for lock washers, Period. That's because each Headlock™ Bolt features 24 equally-spaced, stainless steel teeth serrations that bite into and hold onto the attaching surface-eliminating the need for lock-washers.
Features:
  • 16 per Package
  • Includes a ball-head/hex-key socket-installation tool that makes it easy to get them started
  • 410 stainless steel
  • Minimum 180,000 PSI tensile strength
  • 24 equally spaced clockwise teeth

Videos:

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Years Engine Fitment Notes
Chevrolet Chevelle 1965 6.5L / 396 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Chevrolet Chevelle 1966 6.5L / 396 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Chevrolet Chevelle 1967 6.5L / 396 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Chevrolet Chevelle 1968 6.5L / 396 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Chevrolet Chevelle 1969 6.5L / 396 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Chevrolet Chevelle 1970 6.5L / 396 / V8
6.6L / 400 / V8
7.4L / 454 / V8		 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Chevrolet Chevelle 1971 6.6L / 400 / V8
7.4L / 454 / V8		 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Chevrolet Chevelle 1972 6.6L / 400 / V8
7.4L / 454 / V8		 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Chevrolet Chevelle 1973 7.4L / 454 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Chevrolet Laguna 1973 7.4L / 454 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Chevrolet Laguna 1974 7.4L / 454 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Chevrolet Laguna 1975 7.4L / 454 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Chevrolet Malibu 1965 6.5L / 396 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Chevrolet Malibu 1966 6.5L / 396 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Chevrolet Malibu 1967 6.5L / 396 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Chevrolet Malibu 1973 7.4L / 454 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Chevrolet Malibu 1974 7.4L / 454 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Chevrolet Malibu 1975 7.4L / 454 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;

Specifications:

Emission Code 5
Finish Polished
Material 410 stainless steel
Part Type Exhaust Header Bolt
Product Type HeadLock Locking Header Bolts
Proposition 65 www.P65Warnings.ca.gov
Size 3/8-16 x 3/4
Warranty Limited 90 Day
Weight 7.0000

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