74dkred454

Can someone tell me what the maintenance requirements are for a 70 to 72 LT-1, specifically the differences from a base motor, and what happens if it isn't done.

gungatim

that should all be covered in your owners manual. if you do not have one, go to the parts store and buy a shop manual. maintenance intervals are generally spelled out pretty well on all the manuals I have seen.

Solid LT1

70-71 LT-1s have transistor ignition so no points changes is a plus. Valve adjustments with stock cam/rockers/springs.....I check mine every oil change but you can probably go 6-10K miles between adjustments if your not revving it to redline and using it like Zora intended you to use it. The Holley carb can require more attention more often than a Qjet. The 70 LT-1 is on the ragged edge of octane requirements with the best grade of pump fuels and can require tuning due to te high compression.

74dkred454

Thanks Solid, thats what I was looking for, sounds like the valve adjustments could be a pain for a novice (like me). The reason I had asked was, I was looking at one to buy, but I think I would be in over my head.

ddawson

It's not bad but you have to read up on it. When I had a 71 Z28 LT1 you learn how to do it.

Ironcross

EO/IC method with the engine shut off....

Easy way and accurate every time

HwyFever

Sorry for the novice question, but huh? What is this method or where can I read up on it.

ddawson

Exhaust Opening Intake Closing

http://www.onallcylinders.com/2012/0...st-valve-lash/

Using a Remote starter to turn the engine so you can see the rockers is handy.
http://www.summitracing.com/parts/oe...FQswaQodMhcNWQ