400 w/ 7.4:1 SCR
Well, I went out and measured the camshaft. Overall, the specs look very close to a stock replacement, so that's probably what it is. Any difference is probably due to my measurements. Here are my results:
Intake: .285" lobe lift (.428" theoretic valve lift), 206* duration @ .050", 290* duration @ .003", 108* ICL
Exhaust .285" lobe lift (.428" theoretic valve lift), 210* duration @ .050", 300* duration @ .003", 117* ECL
Obviously, the ramps are incredibly slow - almost cringeworthy.
I popped the timing cover off and the chain, though it's a stock link type replacement, is in great shape with very little slop. You could definitely tell it is a low mile rebuild for sure.
At this point, I'm pondering 3 options:
1. Button it up as-is (with thin shim-style head gaskets).
2. New timing chain and advance this cam at 102-ish.
3. New timing chain, new cam/lifters (maybe valve springs?).
What option would you guys choose??? I'm leaning toward option 1 or 2 since it's just a temporary engine to get the car back on the road.
Well, I went out and measured the camshaft. Overall, the specs look very close to a stock replacement, so that's probably what it is. Any difference is probably due to my measurements. Here are my results:
Intake: .285" lobe lift (.428" theoretic valve lift), 206* duration @ .050", 290* duration @ .003", 108* ICL
Exhaust .285" lobe lift (.428" theoretic valve lift), 210* duration @ .050", 300* duration @ .003", 117* ECL
Obviously, the ramps are incredibly slow - almost cringeworthy.
I popped the timing cover off and the chain, though it's a stock link type replacement, is in great shape with very little slop. You could definitely tell it is a low mile rebuild for sure.
At this point, I'm pondering 3 options:
1. Button it up as-is (with thin shim-style head gaskets).
2. New timing chain and advance this cam at 102-ish.
3. New timing chain, new cam/lifters (maybe valve springs?).
What option would you guys choose??? I'm leaning toward option 1 or 2 since it's just a temporary engine to get the car back on the road.
That's a good question. I didn't even think of that. I have the pan off, so I'll have to go out and look. I didn't even realized 400's came with forged cranks.
