1972 Chevrolet Monte Carlo "W" code 454.
CPD = 270 hp with TH 400 trans
CRW = 270 hp with TH 400 trans, A.I.R
My 2 cents
Darren,
In the Chevrolet by the numbers book the code CRN is Monte Carlo specific for 454 with th400, no mention of it being used for a Chevelle.
I'm not a Chevelle expert but I'm getting below for Chevelles
CRQ =th 400 360hp
CRR =th 400 450hp sp hi perf
CRT =3-4spd 360hp
CRV =4-spd 450hp sp hi perf
I know the guy that Daveys friends brother knows.
Vaughn