racerdude5
Well-Known Member
Can you replace the timing cover on a 318 so you can run a long snout camshaft that has the space for the fuel pump eccentric? Also, can you run flat tappets in a roller block that has the deep tappet bores?
Also, can you run flat tappets in a roller block that has the deep tappet bores?
No, I think that the oil holes for the lifter feed will be uncovered and create an oil pressure loss. If you want to run flat tappets, get a flat tappet block.
Why not run a nice hydraulic roller?
But what about in a factory production roller block? Can you run the flat tappets?
rollers in a flat tappet block will expose the oil band.
Incorrect...............
I have two MP 360 factory short block...both are 91 blocks....the blocks have the threaded holes for the spider like a roller block should have....both cam from the factor with the MP 509 hydraulic cam...
One is currently in my 73 Duster with a Erson hydraulic cam...and Seal Power hydraulic lifters...oil pressure is a good 70 lbs
rollers in a flat tappet block will expose the oil band.
I know of several roller lifters on the market that have the body designed to work WITHOUT having to bush the lifter bores on an OE tappet block. I run a set of cranes that do NOT uncover the oil hole, and have had no issues whatsoever. They DO however require some block grinding depending on how bad your core shift is...I think there is another smaller company that makes drop in rollers now, that still don't require the lifter bore bushing, can't recall the name though.
not trying to hijack, just wanted to point out the option is out there.
it is a 91 360 block....which are roller blocks....MP sold those years ago.....they were OEM blocks...sold as a short block by MP.....I have two of them...both came from MP with flat tappets in them...So I guess MP does not know they would expose the oil band...LOL
One is currently in my 73 Duster....been there for several years now....
I will post the Part numbers...later today....
the OP was about flat tappets in a roller block...not roller lifters in a flat tappet block...
Do you have any roller blocks??????