1.7 roller rockers clearance ok? 5.0 ho 1990

Reply Subscribe

Thread Tools

Search this Thread

09-26-2006, 01:56 AM

#11

aode08

5th Gear Member

Thread Starter

Join Date: Oct 2005

Location: Ohio USA

Posts: 4,616

RE: 1.7 roller rockers clearance ok? 5.0 ho 1990

thats a .563 so id check it

09-26-2006, 02:02 AM

#12

91stang

4th Gear Member

Join Date: Mar 2005

Location:

Posts: 1,860

RE: 1.7 roller rockers clearance ok? 5.0 ho 1990

dam it... what do i have to do to check it? or how do you notch the pistons? i know omeone on here said that it's easy to do yourself.

also would that cam be a good choice? i've heard some good things bout it

(sorry to steal your thread)

10-12-2006, 07:06 PM

#13

aode08

5th Gear Member

Thread Starter

Join Date: Oct 2005

Location: Ohio USA

Posts: 4,616

RE: 1.7 roller rockers clearance ok? 5.0 ho 1990

put a piece of clay in cylinder and turn over. with old head gasket on block and block bolted down two bolts/ you can see where the piston laps and almost touches the face, measure, the depth, after peeling off clay, .080 in ur fine

OR the engine will lock while turning, then u know

10-12-2006, 07:11 PM

#14

Ninety5five0

5th Gear Member

Join Date: Nov 2005

Location: Katy, Texas

Posts: 3,311

RE: 1.7 roller rockers clearance ok? 5.0 ho 1990

You can also test it without takin off the head. http://www.fordmuscle.com/fundamentals/pistontovalve/

Theres 2 methods there.

10-12-2006, 07:41 PM

#15

gspfunk

5th Gear Member

Join Date: Nov 2004

Location: Texas

Posts: 3,834

RE: 1.7 roller rockers clearance ok? 5.0 ho 1990

Quote:

ORIGINAL: aode06

yeah thats what i thought, I figured I can at least get the 1.7 rollers and gain 30 hp, my machinist told me my stock cam is holding me back with my setup and I need to make it BREATHE, so Im assuming with my stock cam and some 1.7 rollers my duration and specs will be cobra?? correct?

If you are really trying to get it to breathe, do something w/ the heads. Port them, swap them out, something. The rest of your combo won't matter much if you're running bone stock E7's. You can find an E cam or TFS stage 1 for cheap on ebay..I would do that instead of going w/ 1.7's. I decided I wanted 1.72's on my E cam (.535) lift, but there is a lot of valvetrain noise....I don't think the stock length pushrods are long enough, so I bought some 1.6's that are going on Saturday.....