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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 12/09/2024 (If Ordered Today)100 Available from HOLLEY PERFORMANCE PRODUCTS as of 11/20/2024
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
Ford 300 1963 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Country Sedan 1964 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Country Sedan 1965 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Country Sedan 1966 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Country Sedan 1968 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Country Sedan 1969 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Country Sedan 1970 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Country Squire 1964 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Country Squire 1966 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Country Squire 1967 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Country Squire 1968 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Country Squire 1969 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Custom 500 1965 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Custom 500 1966 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Custom 500 1967 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Custom 500 1968 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Custom 500 1969 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Custom 500 1970 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Custom 1966 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Custom 1968 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Custom 1969 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Custom 1970 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Fairlane 1964 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Fairlane 1965 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Fairlane 1966 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Fairlane 1967 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Fairlane 1968 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Fairlane 1969 7.0L / 427 / V8
7.0L / 428 / V8
HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Fairlane 1970 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Falcon 1970 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Galaxie 500 1965 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Galaxie 500 1966 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Galaxie 500 1967 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Galaxie 500 1968 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Galaxie 500 1969 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Galaxie 1965 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Galaxie 1966 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Galaxie 1967 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford LTD 1965 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford LTD 1966 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford LTD 1967 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford LTD 1968 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford LTD 1969 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Mustang 1968 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Mustang 1969 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Mustang 1970 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Mustang 1971 7.0L / 429 / V8
5.8L / 351 / V8
HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Mustang 1972 5.8L / 351 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Ranch Wagon 1964 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Ranch Wagon 1965 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Ranch Wagon 1966 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Ranch Wagon 1967 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Ranch Wagon 1968 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Ranch Wagon 1969 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Ranch Wagon 1970 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Thunderbird 1962 6.4L / 390 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Thunderbird 1963 7.0L / 427 / V8
6.7L / 410 / V8
HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Thunderbird 1964 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Thunderbird 1965 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Thunderbird 1966 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Thunderbird 1967 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Torino 1968 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Torino 1969 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Torino 1970 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Ford Torino 1971 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Brougham 1967 6.7L / 410 / V8
7.0L / 428 / V8
HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Caliente 1965 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Colony Park 1965 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Colony Park 1966 7.0L / 427 / V8
6.7L / 410 / V8
HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Colony Park 1967 7.0L / 428 / V8
6.7L / 410 / V8
HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Colony Park 1968 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Comet 1965 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Comet 1966 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Comet 1967 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Commuter 1965 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Commuter 1966 7.0L / 427 / V8
6.7L / 410 / V8
HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Commuter 1967 6.7L / 410 / V8
7.0L / 428 / V8
HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Commuter 1968 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Cougar 1968 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Cougar 1969 5.0L / 302 / V8
7.0L / 429 / V8
HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Cougar 1970 5.0L / 302 / V8
7.0L / 429 / V8
HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Cougar 1971 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Cyclone 1965 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Cyclone 1968 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Cyclone 1969 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Cyclone 1970 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Cyclone 1971 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Marauder 1965 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Marquis 1967 6.7L / 410 / V8
7.0L / 428 / V8
HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Marquis 1968 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Marquis 1969 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Montclair 1965 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Montclair 1966 7.0L / 427 / V8
6.7L / 410 / V8
HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Montclair 1967 6.7L / 410 / V8
7.0L / 428 / V8
HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Montclair 1968 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Montego 1968 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Montego 1969 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Montego 1970 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Monterey 1965 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Monterey 1966 6.7L / 410 / V8
7.0L / 428 / V8
HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Monterey 1967 6.7L / 410 / V8
7.0L / 428 / V8
HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Monterey 1968 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Monterey 1969 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Monterey 1970 7.0L / 429 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Park Lane 1965 7.0L / 427 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Park Lane 1966 6.7L / 410 / V8
7.0L / 428 / V8
HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Park Lane 1967 6.7L / 410 / V8
7.0L / 428 / V8
HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Park Lane 1968 7.0L / 428 / V8 HEADLOCK LOCKING HEADER BOLTS; SAE; 1955-1996 CHEVY/FORD ENGINES; 16 PC.;
Mercury Villager 1965 7.0L / 427 / 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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Mr. Gasket Headlock Locking Header Bolts, 3/8-16 X 3/4 Inch, Set of 16 2231G:
Blue Oval Classics 2024