Aluminum rods offer cushioning that is important for the stock buick block as well as the bearings.
Buick 455 connecting rod length.
Premium quality 4340 steel billet h beam buick big block connecting rods.
All regular production pontiac v 8s from the 326 to 455 used a connecting rod that measures 6 625 inches from the center of the wristpin bore small end to the center of the crankshaft bore big.
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The following information has been directly complied from original buick service manuals for the respective year of vehicle manufacture.
That puts the rod length at 7 2 i recommend going with aluminum.
General specifications for the 1968 400 430 and 1970 buick 455 cubic inch engines.
455 buick with 2 200 diameter rod pins uses 925 wide buick rods.
Buick 400 430 455 engine specifications and blueprinting.
Stock length and stroker rods.