69' amx

Paul Ceasrine · 06-24-2010, 11:26 AM

Jeff,
I thought the cylinder heads were the same casting.
Don't the 69' S/S "Crane' heads have slightly larger combustion chambers, due to machining for valve schrouding, and not casting.
I think Kaplan Engineering has something discussed about exhaust flow
and the major incease in flow developed at higher rpms, with the 'dog-leg' design.
Just read my old 68' Drag Performance Mag
1968 AMX 390/315,,E/S
With Doug Headers, 4.44 gears, 7' slicks, Schieffer clutch package, and dyno-tuned.
13.07 @ 108mph
PC

06-24-2010, 11:26 AM	#9
Paul Ceasrine VIP Member Join Date: Apr 2009 Posts: 2,546 Likes: 0 Liked 10 Times in 10 Posts	Re: 69' amx Jeff, I thought the cylinder heads were the same casting. Don't the 69' S/S "Crane' heads have slightly larger combustion chambers, due to machining for valve schrouding, and not casting. I think Kaplan Engineering has something discussed about exhaust flow and the major incease in flow developed at higher rpms, with the 'dog-leg' design. Just read my old 68' Drag Performance Mag 1968 AMX 390/315,,E/S With Doug Headers, 4.44 gears, 7' slicks, Schieffer clutch package, and dyno-tuned. 13.07 @ 108mph PC