Re torqueing head studs/bolts
I posted this on Moparts too.
I've been SLOOOOWLY assembling my new small block and last night got the heads on it. Last summer I read an article in CC or HR where they fixed some problems with a guys (I think) Olds. Whatever it was it only had ten head bolts like a SBM. In the article after installing the heads they let it sit over night, the next day one by one they broke the nuts loose and re torqued them. The nuts were marked after the original torque so they could see any movement on the re torque and there was.
Before I left the shop I marked some of the nuts and both bolts on both sides. This AM I broke them loose and re torqued them one by one. and they all moved. The nuts on the studs moved more than the two bolts. The bolts are in the holes that oil the rockers and were torqued to 100 ft lbs and the nuts at 110 ft lbs. All the marks on the nuts were at the 6 o'clock position and the bolts were at 12 o'clock.
BTW the head gaskets are Fel Pro 1008s.
Studs.
Bolt.
I posted this on Moparts too.
I've been SLOOOOWLY assembling my new small block and last night got the heads on it. Last summer I read an article in CC or HR where they fixed some problems with a guys (I think) Olds. Whatever it was it only had ten head bolts like a SBM. In the article after installing the heads they let it sit over night, the next day one by one they broke the nuts loose and re torqued them. The nuts were marked after the original torque so they could see any movement on the re torque and there was.
Before I left the shop I marked some of the nuts and both bolts on both sides. This AM I broke them loose and re torqued them one by one. and they all moved. The nuts on the studs moved more than the two bolts. The bolts are in the holes that oil the rockers and were torqued to 100 ft lbs and the nuts at 110 ft lbs. All the marks on the nuts were at the 6 o'clock position and the bolts were at 12 o'clock.
BTW the head gaskets are Fel Pro 1008s.
Studs.
Bolt.
