engine ID & head selection help
motor ID
ive looked thru the wallace database and all the numbers on my motors dont match up. engine code, engine date code, and block casting codes.
please see info below.
motor1. WS / F059 / 9790071 - block only has 2 motor mount holes
motor2. YD / K119 / 9799914
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ive got two sets of heads and i would like to know which would be better for a mild street engine build (375-400hp). i plan on port matching the heads to a performer intake, and i will get new pistons if needed.
heads1. 1975 400 185 HP 5C 2.11/1.66
heads2. 1970 400 290 HP YD 1.96/1.66 10.0cr /16 /sm valve /64 Block Casting 9799914
notes:
heads1 97cc
heads2 86cc
heads2 the rocker arms get oil thru the rocker arm pressed studs - not a good design
heads2 require hardened valve seats
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