Universal Header Bolt Kit 5/16in wrench, 3/8in, 1.000in UHL Black Oxide Hex Head · Details · Shipping & Returns · Returns Policy · Shipping.

Double hex head includes 3/16 inches recessed allen head for easy installation. Removable and reusable. Can visually inspect; no need to put a wrench on to check tightness. › See more product details. +. +. This item: Stage 8 8911A 1" Locking Header Bolt Kit for GM Small Block. $63.11.

Reduced hex diameter bolts work OK on most headers- which I hope you'll be using and not the stock manifolds. Sometimes you'll need special 

Tighten the bolts evenly, from the inside to the outside, as tight as you can with a wrench--no cheater bars allowed and no air tools. Warm up the engine and go through the tightening process

my header bolts use a 7/16 wrench. during the removal of both motors I used a little tiny wrench that was maybe 3 inches long when I put it 

Apr 29,  · Take a box end wrench and grind down the outside of the wrench on the closed end until it fits over the head of the bolt next to the tube.This will be a trial and error process

Header Bolts, 12-Point Head, 30mm UHL, 3/8 in. Wrench, Stainless Steel, Polished, Chevy, LS Engine, Set of 12 Part Number: ARP-434-1202 4.41 out of 5 stars ( 29 )

Header Bolts, 12-Point, 3/8 in. Wrench, Custom 450, Black Oxide, Chevy, Small Block, Set of 12. Part Number: ARP-100-1201. 4.69 out of 5 stars. Estimated Ship Date: Today. $16.99. Estimated Ship Date: Today. Summit Racing™ Split Lock Bolt Kits SUM-910120.

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CTA Tools 9260 VW and Audi Head Bolt Wrench - 6-Point Ribe - 9-Millimeters is a special bit wrench designed to service head bolts found on many late model VWs and Audis. It features a special 6-point head and a 1/2-inch square drive. The wrench is 5-1/2-inches (14-centimeters) long for accessing deep-reach applications.

The wrench can be positioned parallel or perpendicular to a 3/8" drive torque wrench. You can purchase the adapter on Motion Pro's website or