Specing a 70 LT-1

[LIRacer]

While I am having my 72 painted, Ive decided to pull the #s matching motor and rebuild it. What would I need to bring it up to 70 specs?

[69autoXr]

You would need 11:1 domed pistons, and 64 cc combustion chamber heads. Everything else was the same.

[Robert N]

TRW 11:1 dome top pistons, 64cc chambered heads with 2.02 intake and 1.60 exhaust valves, aluminum dual plane intake 80 cfm vac sec Holley (750 DP works), 2 1/2 exhaust, forged crank, "pink" rods with guide plates, LT-1 cam.

Be prepared for high octane fuel. Mine runs best when mixed with 100+.