BSA A50 / A65 Twins Cylinder Head Bolt & Stud Set - 1962-67 Closed End M Part number is 70-9979

M Part number is 70-9979 or E9979

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Brand New Top Quality Triumph & BSA Unit Twins Front Fork Stainless Top Nut Set

BSA A50 / A65 Twins Cylinder Head Bolt & Stud Set - 1962-67 Closed End M Part number is 70-9979New Early BSA A50 & A65 Twins Cylinder Head Bolt & Stud Set. Rebuild your BSA unit twin the correct way using O. E. M. quality parts. Everything is included from head bolts and studs making this a very comprehensive set Made in England. Correct for early cylinder head and barrels that featured the smaller rear 5 16" head bolts. Fits BSA 500 & 650 Unit Twins (Lightning, Thunderbolt, Royal Star, Spitfire, Hornet, Rocket, Etc) from 1962 1967 only. Please