Bolt Kit – 455 Exhaust Manifold Bolt Kit – 1970 & 1971


These are the Correct “Ramp Lok” bolts that Buick used on the Exhaust Manifolds

This is a 14 Pc Kit

Fits 1970 – 1971 455 Engines with the correct 1970 – 1971 Exhaust Manifolds

These will NOT work on 350 Engines!



Note: IF your car doesn’t have the Correct 1970 or 1971 Manifolds there may be a bolt or two that won’t be the right size.

IF that’s the case we certainly have the correct bolts but shipping fee’s may be applied if we need to send out more bolts.

Our kit is designed for the Factory 1970 & 1971 455 Exhaust Manifolds. See part numbers below. . . .

Driver Side: 1233899 & 1233451

Passenger Side: 1383648   (IF your passenger Side Part # is 1238094 you’ll need our 1972 Kit)

If you’re not 100% sure on your Passenger Side Manifold simply order the 1972 Kit and you’ll get 1 extra bolt that will cover EITHER manifold!


The Photo Below shows the difference in Manifolds.

Part # 1238094 uses a longer bolt at the Front vs the 1383648 which uses a shorter bolt:


Correct Torque Specs on these is 18 Foot Pounds!





Stage 1 Restoration has the most hardware of any vendor for the 1970 – 1972 GS / GSX & Skylark Models.

Don’t see what you need ?  Give me a call, we probably have it!



SKU: 455-EX-1970 Categories: ,