Extreme race 390 motor built in the '70's based on the AMC American Performance Book.
Mode 3 and 4 upgrades:
- Roller cam ~0.639 lift, roller lifters with Crane rockers.
- High compression ~13:1 pistons.
-AMC #319 6291 heads with O-Ring copper wire.
- Rocker stud girdles.
- Miloden deep sump oil pan.
- Easily revs to 7000 rpm.
This is a rare, one of a kind AMC survivor drag race motor.