how rare are 351w roller blocks?

[mgcook]

i'm on the lookout for a roller 351w block, none of the junkyards around here seem to have any

i know the F150/F250's and some of the Eseries vans came with them...but how rare is it to find a roller block?

 

[enyawix]

VERY RARE!

I may just break down and buy the 450 retrofit kit. From what I can find on google 1994+ block were roller capable but most had non roller setups. Also keep an eye on ebay.

 

[blksn955.o]

I dont know if I would call it rare.

Any production F150-F250, E-series van 94+ with a 351 is a roller block (like posted above roller ready not equipped though). Rare would be the 93's that had the F4te casting (casting number for roller block) as some got them late in the year.