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Motor Home 440
I have a 78 MH 440 in my 69 Charger R/T and I could not ask for better. Original heads had hardened seats and the block had some beefier looking casting than the older blocks. Pistons, heads, exhaust and intake make all 440's run great.
My 440 was running great with 452 Heads ported and polished with stainless steel valves, but I put 440 Source Heads on and WOW!! I was turning 13.5 to 13.7 @100 before and can't wait to see how much difference I get in both time and speed. I was getting valve float past 4600, but the springs...