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SBC HEAD BOLTS FOR ALUMINUM HEADS, 12 POINT W/WASHERS 2451-W,

$50.50

Available



Product Information

UPC351673559795
Product TypeShipped Product
Shipping Cost $6.75
Number of reviews 0
12 POINT COMPETITION STYLE 34pc. HEAD BOLT SET WITH SPECIAL STYLE WASHERS FITS SBC CHEVY

PCE279.1003

bolt kit resized photo e4bfbb3e-a62e-4f25-baca-06d469d86c86.jpg

12 point head bolt set with washers. The washers are a special type washer. Remember to install the washers with the flat side down against the cylinder head. The head bolts have an extended reach to compensate for the washer thickness. Beware of others offering a similar kit with standard reach bolts. When using the special washers the bolts must have an extended reach, as oe length bolts do not have sufficient reach to accommodate the thick washers. This is what we use on many of our engine builds. Zero problems to date. The 12 point head also allows for a tighter fit of the socket and less variance in the torque readings. Standard style 6 point head bolts allow the socket to round the corners slightly on the bolt and this will affect torque accuracy.

One of the most important benefits of the special style head bolt washers are that they distribute the pressure on the cylinder head, and provide a glide surface for the built in washer on the head bolt. This allows for much greater accuracy when torquing the head bolts. Those with aluminum heads must use the special style head bolt washers for two very important reasons. The aluminum surface tends to drag and gauld against the head bolt, causing inaccurate torque readings. The other well established benefit for the use of these washers is the fact that aluminum heads are known to crack in the center area of the head directly under the head bolt. This area has been compromised due to the port location. When the aluminum heads are cast it is difficult for manufactures to keep the integrity of these areas consistent. The washers positively reduce cracking the cylinder head in this area.

Those wanting to run just the special washers with conventional length head bolts will not be able to do this due to the thickness of the washers, as the standard head bolt length have a very limited reach. You may think that GM stock length bolts have enough thread on there bolts to add washers, but this is not the case.

We strive to keep our prices low, and due to the high volume that we purchase, this allows us to have the best price in the country. Many garages will buy several sets at a time just to have them if the need arises. Our shipping prices are usually the lowest you will find.

PART NUMBER ON THIS ITEM IS 2451-W


Very Important Note!

Our sales staff has limited technical knowledge on this product and are usually unable to answer many of the questions asked. See our other listings for any variations of this product.

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