Mr. Gasket Oil Pan Bolt Kit - Fits SB Chevy , 90 Chevy V-6 , Olds V-8 - 1/4"-20 x 1/2" (14 Pieces) , 5/16"-18 x 3/4" (4 Pieces) H763CBFXXL They provide a special heat-treatment

They provide a special heat-treatment and stress relieving process

Repairing damaged fins provides better airflow through core

Carburetor Accelerator Pump Diaphragm

Bolt Circle Template

Can be used on inductive and CD ignitions

Mr. Gasket Oil Pan Bolt Kit - Fits SB Chevy , 90 Chevy V-6 , Olds V-8 - 1/4"-20 x 1/2" (14 Pieces) , 5/16"-18 x 3/4" (4 Pieces) H763CBFXXL They provide a special heat-treatmentThe special Self Locking oil pan bolts, use a smaller than standard hex head is ideal for tight spaces. Because of the hex flange head design, it will not fall back into the socket wrench, allowing for easier installation. Special underhead serrations prevent loosening and the wide flange head distributes uniform clamping pressure for an Ultra gasket seal. Bolts are zinc plated, Grade 5. Application: Chevy Small Block & 90 degree V6 engines & Olds V8,