Is it the A-Cam or B-Cam?

Minh · Post by **Minh** » Fri Feb 20, 2004 1:08 am

I read the U20 camshaft the exact same specs as a 510 SSS camshaft.

oilleak · Post by **oilleak** » Fri Feb 20, 2004 9:31 am

A - 256 duration, .44 valve lift
B - 280 duration, .46 valve lift

Minh · Post by **Minh** » Fri Feb 20, 2004 11:33 am

I guess that would be A-Cam as the likely candidate since the most common SSS cam is a .41" lift and 248 duration.

That is good news for me b/c I now have an outlet to sell my old A-cam.

oilleak · Post by **oilleak** » Fri Feb 20, 2004 4:57 pm

you mean sell an a cam to someone with an L-series? They don't interchange. Different number of cam towers. different lenth and spacing. Lift and duration only tell you about the cam lobes, if you look you'll find small block chevy or ford cams that have the same or similar lift and duration numbers - not interchangable though.

Minh · Post by **Minh** » Fri Feb 20, 2004 6:41 pm

Than I'm confused...

This guy is put a U20 Cam into his Datusn 510 W53 head...
http://cgi.ebay.com/ebaymotors/ws/eBayI ... 2461683545

Post by **spl310** » Fri Feb 20, 2004 8:05 pm

Most likely it was a cam reground to U20 specs.....

Marky510 · Post by **Marky510** » Fri Feb 20, 2004 11:58 pm

He probably meant to put L20B camshaft, they do have same specs as an SSS cam and there is a casting on the cam itself that says U20, but definetly for L series motors.
Mark

Minh · Post by **Minh** » Sat Feb 21, 2004 1:41 pm

Ah...

Thanks guys...