Head and Cylinder Bolts
180,000 tensile strength ARP stainless (chromoly 200,000 tensile strength studs are non-stainless).
The fluted shanks allow the studs to stretch to prevent the threads from pulling out. The bolts don’t loosen and oil leaks are eliminated. Special triangular reduced shank studs help align the head with the cylinders. Fluted bolts have a larger diameter than reduced diameter shanks and more resistance to twist than reduced diameter bolts. Stock heads require installation of US 3/8″ coarse thread TimeSerts or Helicoils. Full Auto heads with British thread Helicoils need conversion to US threads with oversize TimeSerts (“Big-Serts”).
Showing all 10 results
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Kit #0 – Reduced shank ARP 3/8″ x 16 tpi SS cylinder through bolts with rolled threads for ALL BOLT THROUGH CYLINDERS (iron and alum – stock, Maney or Molnar).
$89.00 Select options -
Kit #1 – Reduced shank ARP 3/8″ x 16 tpi SS head bolts with rolled threads for MANEY or MOLNAR ALUM CYLINDERS. Requires inserts for Molnar.
$109.00 Select options -
Kit #2 – Reduced shank British ARP 3/8″ x 26 tpi SS head bolts for STOCK CYLINDERS
$129.00 Add to cart -
Kit #3 – Reduced shank British ARP 3/8″ x 20 tpi SS head bolts for MOLNAR cylinders
$129.00 Add to cart -
Kit #4 – Reduced shank chromoly studs with rolled threads for FA/STS and STOCK HEADS WITH MANEY or MOLNAR ALUM CYLINDERS. SS spring washers and 12 pt ARP SS nuts. Stock and early FA heads require inserts.
$89.00 Select options -
Kit #5 – Reduced shank 3/8″ x 16 tpi into head chromoly studs with rolled threads for FA/STS and STOCK HEADS with STOCK IRON CYLINDERS. SS Spring washers. High strength 416 alloy SS Long nuts with 12 pt SS ARP short nut. Stock and early FA heads require inserts.
$109.00 Add to cart -
Kit #6 – Reduced shank 18 tpi into cylinders 5/16″ ARP SS studs with rolled threads for MANEY ALUM CYLINDERS WITH STOCK or FA/STS HEADS. 12 pt ARP SS nuts and spring washers
$59.00 Add to cart -
Kit #7 – Reduced shank British 5/16″ x 26 tpi chromoly studs for STOCK IRON or MOLNAR ALUM CYLINDERS WITH EITHER STOCK OR FA/STS HEADS. Includes SS British nuts and spring washers
$59.00 Select options -
3/8″ – 16 TPI x .620″ lengthTime-Sert Kit for the 3 head studs with extra tap for bottoming
$199.00 Add to cart -
3/8″ – 16 TPI x 1.2″ length Time-Sert Kit for JSM kit #1 Molnar head bolts with US thread.
$199.00 Add to cart
Showing all 10 results