I want to put the stock roller cam from my '87 5.0 GT in my '87 f-150 5.0. I need to know if I have a roller block or not. What year did the trucks come with roller blocks. If it isn't a roller block can I drill and tap my stock block for the spider and run the roller cam in that?.

I have already converted to SEFI using the speed density computer with a superchip from my stang and running individual wires to each injector. This gave me great low-end with my stock cam and 1.7 rockers but it still stops making power around 4,500rpm.

Please help because I am stuck driving my truck around for a while until I get the 331 in my stang.

 

http://www.jegs.com/photos/2701154216.jpg

I don't know if your truck has a roller block. But I do know it needs the taller lifter bores that are cast in the block, besides the spider mount holes. You could buy the ones above for a regular block. But they are not cheap.

270-44518-16 SB-Ford | $358.99 from jegs

 

[updated:LAST EDITED ON 10-Nov-02 AT 04:52 PM (EST)]a friend of mine emailed ford about this and this was their response:

"Starting in 1988, the F series 302 engines were assembled in the Cleveland Engine Plant, right next to the Mustang's 5.0 H.O. engine, and in fact used the exact same (roller) block. However, even though the trucks started using the 302 roller block in 1988, they were still equipped with flat-tappet non-roller cams and lifters through 1991."

 

I checked my block casting number and I can't tell what the second number is. what I could tell was it said F?se. I did some research and the only casting number close I have seen is F1SE. These blocks were used on roller and non-roller motors. Could Jasper(the company that I got my new motor from) have used a roller block for my rebuild? I may just have to tear it apart just to find out

 

If you have the intake manifold off look in the lifter galley. There should be a 3 letter code in there. Either xxx or yyy will be a roller block. XXX is out of the mustang and truck, STRONGER, and YYY is out of the crownvic.