First time swapping edelbrock aluminum for 915 cast iron heads.
I’m reaching out again for some advice. Well I’ve broken loose and removed all the lower head bolts from where the head bolts to the block just above the plugs. I think the easiest way to remove the remainder of the head bolts which are inside the head below the rockers is to remove the rockers. Would that be correct? Now looking at the shaft mounted roller rockers can I remove the rockers all at the same time by removing the entire shaft then just drop the shaft on top of the new eddy’s. I’ll take the pushrods and make sure to match up each pushrod in the same place on the new heads so they work with the same rocker. Can I get away with just oiling up the metal to metal surfaces where the pushrods touch the rockers and rockers touch the valves on the new Eddy’s or do I have to buy break-in lube? I have included some pics so I can reference them. In the one closeup you can see the end of the shaft with the hold down bolt and what looks like an Allan key running in through the side. What do I do first to remove the shaft? Than can I loosen the hold down bolts along the shaft and then lift it off? I’ll be sure to liberally oil up all the metal contact points. Than when I drop it on the new Eddy’s I can set the preload and make sure the clearances are correct? To set preload when rocker is in place first wiggle the rocker lightly and tighten down the Allen key until there is no more play. Then turn the Allan key one full turn tighter hold in place and tighten the lock nut? That is called setting the preload correct? Then do I also want to put a feeler guage in between the roller and top of valve? If so what should be the clearance or should there be none because it should of been taken out when I set preload? Can I use a pry bar to separate the head from the block and where to pry from? When I put the new aluminum heads onto the block both surfaces should be spotless and I shouldnt need any gasket sealer just my cometic gaskets right? Lastly what are the general torque specs:
Head bolts?
Rocker shaft bolts
Rocker hold down bolts?
Thank you ahead of time as always.
Carl
I’m reaching out again for some advice. Well I’ve broken loose and removed all the lower head bolts from where the head bolts to the block just above the plugs. I think the easiest way to remove the remainder of the head bolts which are inside the head below the rockers is to remove the rockers. Would that be correct? Now looking at the shaft mounted roller rockers can I remove the rockers all at the same time by removing the entire shaft then just drop the shaft on top of the new eddy’s. I’ll take the pushrods and make sure to match up each pushrod in the same place on the new heads so they work with the same rocker. Can I get away with just oiling up the metal to metal surfaces where the pushrods touch the rockers and rockers touch the valves on the new Eddy’s or do I have to buy break-in lube? I have included some pics so I can reference them. In the one closeup you can see the end of the shaft with the hold down bolt and what looks like an Allan key running in through the side. What do I do first to remove the shaft? Than can I loosen the hold down bolts along the shaft and then lift it off? I’ll be sure to liberally oil up all the metal contact points. Than when I drop it on the new Eddy’s I can set the preload and make sure the clearances are correct? To set preload when rocker is in place first wiggle the rocker lightly and tighten down the Allen key until there is no more play. Then turn the Allan key one full turn tighter hold in place and tighten the lock nut? That is called setting the preload correct? Then do I also want to put a feeler guage in between the roller and top of valve? If so what should be the clearance or should there be none because it should of been taken out when I set preload? Can I use a pry bar to separate the head from the block and where to pry from? When I put the new aluminum heads onto the block both surfaces should be spotless and I shouldnt need any gasket sealer just my cometic gaskets right? Lastly what are the general torque specs:
Head bolts?
Rocker shaft bolts
Rocker hold down bolts?
Thank you ahead of time as always.
Carl