'302 heads on a 273?

Valve diameters are the same 1.74/1.50 and on the same centers so no bore notch or excessive shrouding issues there. All iron OEM non-magnum heads have cast in place rocker pedestals to include the old W-2 "econo" heads. If you have early high compression pistons, make darn sure there is no dome on them.

Chief...I'm running the 2-barrel pistons,so, no dome. I stole this chart from another Mopar site. Are these numbers accurate?


Table 1. Chrysler Small Block Cylinder Head Volumes (cc)

Casting Number----Year------Chamber---Exhaust Port---Intake Port
2465315/2658920--1965-1966-----64.5-------60--------127
3418915 ----------1971-1972-----71---------69--------149
4027596-----------1980-1984-----71---------65--------149
4323345-----------1985 -->-------74---------65-------150
4323302-----------1985 -->-------62---------54--------118