FRPP Sportsman block or D1ZM 302 Mexican block?

[Goober]

Anyone have any info on these? Which one is a roller block (if any), approximate power levels that they will withstand, ability to find a D1ZM block, ect?

[cstreu1026]

I am not 100% sure but I believe the mexican block is a non-roller block. The sportsman block should be a roller block though. rscoupe use to run a sportsman block in his real street car. He could probably give you a good opinion of it.

[Stangman]

Mexican Blocks were 70's truck blocks. Definitely not Roller. You'd have to use a diff. cam or those expensive coversion roller lifters.

[facemelter71]

Yea,i beleive they were warrenty replacements for the trucks and vans.

[Goober]

http://www.karkraft.com/bare_blocks.htm

How much do conversion kits usually run, or would it be better to run a flat tappet or solid lifter/ solid roller lifter cam?

[cstreu1026]

How much power are you trying to make?

[Stangman]

They might have been a hydraulic flat tappet out of the box, but the conversion lifters are like $500 bucks to be able to run a roller cam, not to mention the cost of the spider and dogbones (unless you get em off a trashed roller 5.0)

Someone suggested in my thread about converting a windsor (I think it was Mike Bell) said that if you want to use stock roller lifters you must use a cam with a smaller base circle... which If I am thinking right, means a smaller cam.

[Goober]

They might have been a hydraulic flat tappet out of the box, but the conversion lifters are like $500 bucks to be able to run a roller cam, not to mention the cost of the spider and dogbones (unless you get em off a trashed roller 5.0)

Someone suggested in my thread about converting a windsor (I think it was Mike Bell) said that if you want to use stock roller lifters you must use a cam with a smaller base circle... which If I am thinking right, means a smaller cam.

I have another 5.0 I can snag those parts out of. I'll go check that thread out. I'm not sure if you need to run retrofit lifters AND a retrofit cam in a non roller block.

[89notch]

You dont need the dog bones and spyder with the conversion lifters they are link bar type lifters.

[Stangman]

Oh thats right, I forgot about the link bar... I was thinking about if he used a smaller base circle'd cam... derrrr