SS Lancer
Well-Known Member
Just curious how many modifications are needes to install roller cam in a LA ( Non Magnum ) block ??
None, I am running a Comp Hydraulic roller in my LA 340 with no mods to lifter bores or oiling system. I love the performance of the cam the retro fit hydraulic roller lifters suck. Do yourself a favor an do a solid roller setup.Just curious how many modifications are needes to install roller cam in a LA ( Non Magnum ) block ??
None as others said. I would find a 88-91 block. Those are factory roller.I had a 360 truck block and had to open pushrods holes up. Had to clean up valley some as well. Had an r on back of block.
Good note I forgot about!I have a 71 360 block and I had to grind down the reinforcement ribs inside the block to get the lifters to go in property. I also reamed out the pushrod holes and used 5/16" pushrods.
Correct, however, if your going to install a fatherly large cam for (very) high performance or racing purposes, I suggest following the MP engines book manual to drill and tube the oil galleys as well as other key high rpm mods that will make the engine happy for many many miles.
were the link bars V'd or straight?I have a 71 360 block and I had to grind down the reinforcement ribs inside the block to get the lifters to go in property. I also reamed out the pushrod holes and used 5/16" pushrods.
Linked v'dwere the link bars V'd or straight?
I'm using eddy heads as well with 1.6 rockers and even with 5/16" pushrods it didn't clear the tubes with out some drilling and grinding.Good note I forgot about!
With my Hyd. Roller cammed 360 with Edelbrock heads and Comp roller rockers using 5/16 p-rods need some clearancing for the pushrods to clear. The pushrod holds in the head needed to be ovaled slightly on the intake side.
None needed for a Solid roller in a early model 318 block ???None.
This is what I needed to seeCorrect, however, if your going to install a fatherly large cam for (very) high performance or racing purposes, I suggest following the MP engines book manual to drill and tube the oil galleys as well as other key high rpm mods that will make the engine happy for many many miles.
It is all about oil control. In the case of drilling and installing the tube, it is about a controlled oil bleed. This is normally done as a race modification.This is what I needed to see
If I run a solid roller I want engine to last for a long time .
It is all about oil control. In the case of drilling and installing the tube, it is about a controlled oil bleed. This is normally done as a race modification.
(READ! High RPM) Once the tube is installed and peened, you’ll need to drill a hole in the tube (debur the drilled hole and the peened tube,) to control how much oil is bleeding out of the hole. From what I remember, (what I read others did...) the hole is .060 or less. I’ll let the actual engine builders take it from here.
You could install the roller cam without this mod, however, spinning the RPMs up isn’t what I would do. Where the limitation is, I don’t know.
Do you drill the small oiling hole before the peening to have some way to get the drill bit to initially 'bite' into the tube? Or is there some nifty tool or method to drill the oiling hole way down in the lifter bore? That part looks tricky to do...
OH WOW! Nice pictures. Excellent visual!There is or atleast used to be a fixture for that,i believe it was available thru MP.