The 360 build that has more turns than Willow Springs
I agree. These engines were not built by NASA/Space X level protocols.
I’ll bet you could take a sample of stock engines back then and they all would vary a bit in torque and HP numbers. I think that we all have had engines that ran stronger or slower than others that seemed to be evenly matched.
The head gaskets from the previous build were the Fel Pro 8553 PT. They are listed as .047 compressed.
It turns out I have three out in the parts shed…
The new one measured .050 as is.
Check out how bulged out the old ones are.
Holy crap! This is the first time I laid the old one over a new one.
The cylinder on the left in the next one is either cyl 4 or 5.
Even it has some bulge to it.
Other side:
The second one in is bulged. Check out THIS one….
Why did these fail? The head bolts were tight. The heads are not cracked. The block is fine. Could it be that the guy ran it lean with too much advance? The pistons had no detonation evidence to them. I do know that this car sat awhile between drives so if he ran cheap 87 octane gas and didn’t hear it knocking, this could happen.
I agree. These engines were not built by NASA/Space X level protocols.
I’ll bet you could take a sample of stock engines back then and they all would vary a bit in torque and HP numbers. I think that we all have had engines that ran stronger or slower than others that seemed to be evenly matched.
The head gaskets from the previous build were the Fel Pro 8553 PT. They are listed as .047 compressed.
It turns out I have three out in the parts shed…
The new one measured .050 as is.
Check out how bulged out the old ones are.
Holy crap! This is the first time I laid the old one over a new one.
The cylinder on the left in the next one is either cyl 4 or 5.
Even it has some bulge to it.
Other side:
The second one in is bulged. Check out THIS one….
Why did these fail? The head bolts were tight. The heads are not cracked. The block is fine. Could it be that the guy ran it lean with too much advance? The pistons had no detonation evidence to them. I do know that this car sat awhile between drives so if he ran cheap 87 octane gas and didn’t hear it knocking, this could happen.