Getting to it too!!! 1967 Barracuda Coupe
I've been making progress on the 273. Crank, cam, and timing set installed. Installed pistons 1 and 2 in order to degree the cam. Tried to spin the assembly and was unable to budge it. I automatically went into panic mode and loosened #1 conecting rod cap.... no movement. Tightened #1 up again and loosened #2.... no movement. Loosened both #1 and #2 ..... smooth movement. Disassembled and made measurements. Connecting rods and crank mains were machined .010 under but the shop gave me .030 connecting rod bearings! Funny how much difference .020 can make.
With the correct bearings in hand, I installed pistons 1 and 2 and degreed in the cam. Lobe center is listed at 108 and my measurements came in at 107. The rest of the slugs went in last night without issue.
I opted for the Isky 390144 E-4 solid lifter cam for this rebuild. Specs are .283 cam lift, .425 valve lift, 260 duration, and 108 lobe center. I think this cam will be close to the original Commando bumpstick.
My machine shop had a A-engine windage tray collecting dust in the corner and I was able to locate a set of attaching hardware from Bill Rolick. A trial spin shows no interference with the rotating assembly.
I've been making progress on the 273. Crank, cam, and timing set installed. Installed pistons 1 and 2 in order to degree the cam. Tried to spin the assembly and was unable to budge it. I automatically went into panic mode and loosened #1 conecting rod cap.... no movement. Tightened #1 up again and loosened #2.... no movement. Loosened both #1 and #2 ..... smooth movement. Disassembled and made measurements. Connecting rods and crank mains were machined .010 under but the shop gave me .030 connecting rod bearings! Funny how much difference .020 can make.
With the correct bearings in hand, I installed pistons 1 and 2 and degreed in the cam. Lobe center is listed at 108 and my measurements came in at 107. The rest of the slugs went in last night without issue.
I opted for the Isky 390144 E-4 solid lifter cam for this rebuild. Specs are .283 cam lift, .425 valve lift, 260 duration, and 108 lobe center. I think this cam will be close to the original Commando bumpstick.
My machine shop had a A-engine windage tray collecting dust in the corner and I was able to locate a set of attaching hardware from Bill Rolick. A trial spin shows no interference with the rotating assembly.
