440 Source Aluminum Heads

I have them on a 512 Stroker in a 72 Satellite Sebring. No problems, no issues, all I did was double check the springs and valves. Also have there roller rockers and shafts!! Excellent part and great tech support.

Dads motor has the source roller rockers too, with Hughes .626 260* cam with Hughes 405lb open pressure springs...what cam are you running