Hello all,

I have a question in regards to the R3 block. I have experience with big blocks but none with Mopar small blocks. I am looking at all options for a turbo engine application. I have found a good deal on a
new R3 block. Here are the specs for this particular block:

59 degree tappet angle
4 bolt main
Siamese bore
9.200" Deck
Standard Cam Tunnel
Rough bore 3.900

I have read that the 59 deg tappet blocks are not recommended for roller lifters and I want to run a roller cam. Can anyone verify if that is true and maybe explain why?

Thank you,
Chris