block casting number isn't there, how do ID it now?

[blue83ranger]

I'm working on getting my '84 mustang ready for antique plates in a few months and wanted to know what the engine came out of. So, i looked behind the starter to get the casting number and there wasn't one. Does anyone know where, if any, other spot i can look to determine what the engine came out of? and do brand new blocks have casting numbers? or crate engines? I know it's not original because i put it in, and took it out of a wrecked '86 mustang but it's not roller so it's not original to that car either. thanks for any help.

 

[baddad457]

If it's a roller block, its there, you just have to look harder. It's tucked in the lower rear corner of the block, not above the starter, rather behind it.

 

[blue83ranger]

thanks, I found it. I was told it wasn't a roller motor though. My cousin was supposed to get it before me but he said it wasn't a roller motor so he didn't want it. the number is E5AE. now i just have to look up what vehicle is a code A. Everything else i know.

 

[baddad457]

E5AE is an early roller block used in the Mustangs, also used in other applications, but with a flat tappet cam. Same block can be used with either cam. The letter "A" denotes a full size car, but doesn't mean that's the only vehicle it could have been used in. These blocks were used in every application that had a 302/5.0 engine. This is the engineering number, not a part number. It simply means the engineering cost were assigned to the full size car line.

 

[blue83ranger]

So does that mean i could say get an E303 cam and some roller lifters and swap them in with no problem?

 

[baddad457]

Yea, as long as the two retainer spyder bolt holes are drilled and tapped in the lifter valley. If not then you'll need to drill & tap em yourself.

 

[blue83ranger]

that's some pretty good info. to know thanks