Dynofit cylinder head fasteners are crafted from aircraft-grade 8740 high-tensile chromoly steel, cold-forged to maintain maximum molecular integrity. Each fastener is heat-treated prior to thread rolling and precision machining, delivering an impressive tensile strength rating of 190,000 psi. Every kit includes premium 12-point nuts and hardened parallel washers to ensure even load distribution, reliable clamping force, and accurate torque readings.
Fitment
Years
Make
Engine
1966–1970
Chevrolet Big Block (Mark IV)
396 (6.5L) V8
1970–1972
Chevrolet Big Block (Mark IV)
402 (6.6L) V8
1966–1969
Chevrolet Big Block (Mark IV)
427 (7.0L) V8
1970–1990
Chevrolet Big Block (Mark IV)
454 (7.4L) V8
1991–1995
Chevrolet Big Block (Gen V)
454 (7.4L) V8
1996–2000
Chevrolet Big Block (Gen VI)
454 (7.4L) V8
Year:1966–1970Make:Chevrolet Big Block (Mark IV)Engine:396 (6.5L) V8
Year:1970–1972Make:Chevrolet Big Block (Mark IV)Engine:402 (6.6L) V8
Year:1966–1969Make:Chevrolet Big Block (Mark IV)Engine:427 (7.0L) V8
Year:1970–1990Make:Chevrolet Big Block (Mark IV)Engine:454 (7.4L) V8
Year:1991–1995Make:Chevrolet Big Block (Gen V)Engine:454 (7.4L) V8
Year:1996–2000Make:Chevrolet Big Block (Gen VI)Engine:454 (7.4L) V8
Product contains
Extended Studs*8
Long Studs*12
Medium Studs*4
Short Studs*8
Washers*32
12-Point Hex Nuts*32
BBC 396-454 Head Stud Kit Chevy Big Block Mark IV/V/VI 1966-2000 12-Point Nuts and Washers
Address frequently asked questions about this product to minimize any concerns or uncertainties that might deter a customer from making a purchase.
Does it come with a warranty?
Yes. We offer 1-year warranty to Lift kits and Lug nuts
What is the payment method?
We accept Paypal and credit card (VISA, MasterCard, American Express, Apple Pay) we list as the method of payment.
How fast is shipping?
Our order is mainly shipped by UPS/USPS. Shipped within 1-5 business days of receiving payment verification. Please clickhereto view the detail.
What's the returns policy?
If you are not satisfied with the purchase or item arriving damaged/defective, and it is within 30 days of receiving the item, you can return the UNUSED item back to us for a refund of the item price only.