I have the regular ole Mopar Performance Crate Hemi heads on my 528". They flowed around 426 as cast on our flow bench but it still made 853/697 with only 10.5:1 on pump gas, so I am happy enough with them for now.


1963 Belvedere 440 Max Wedge Tribute
1970 Charger R/T S.E. 440 Six Pack
1970 Challenger R/T, 528 Hemi
1970 Charger 500 S.E. 440 4 BBL
1970 Plymouth Road Runner 383
1974 Chrysler New Yorker 440
1996 2500 RAM 488 V-10 4X4
2004 3500 Dually Cummins 4x4
2012 Challenger R/T Classic.