My 255,258 .610,.613 hydro roller works great in my 512, can cruise @ 1800 rpm,AC on with converter locked up & is smooth as glass. I have the comp beehive 155 seat

Last edited by csk; 05/26/18 01:52 PM.
1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5