XPBaller

When i pull my edelbrock heads off so i can rebuild the engine AGAIN, im gonna have them ported... I currently have Scorpion 1.6rr's, so i figured i might be able to use the extra lift of some 1.7rr's.

My question is, can i swap my 1.6s for 1.7s without changing anything else? (IE pushrod length..)

Joel5.0

The only one capable of answering that question accurately, is your setup..... after you perform a valve train geometry procedure and ensure the narrowest rolling pattern of the rockers on the valve tip. Otherwise, upgrading to 1.7 rockers would be like upgrading to 1.67 ratio rockers instead.

luckythirteen13

not worth the hassle IMO

Joel5.0

If he didn't check valve train geometry for his current setup, it might be long overdue. Point being, he should do the Engine 101 procedure anyway not bolt on, torque and forget (not check), his current 1.6 ratio rockers might in reality be 1.57's.

Tony71502

Scorpion rockers are *****. I had them and hate them.

How many times have you rebuilt your engine? Do it right and don't abuse it?

XPBaller

I bought the car cash when i got back from the middle east from a (what i thought was) reputable performance mustang dealer here in central FL.... 2000 miles later the wiped main bearings started showing their symptoms... I have a thread with pics of them on here somewhere. Anyways, i tore it down and rebuilt it. Rings, bearings, crank machined, all that. 2000 miles later, a knock (no idea what it is yet, about to tear it down). Anyways, i foundout the torque wrench i used to build it was ****ed. so..... Here we are, engine #3.



This time, things will be getting done RIGHT. And the dont abuse it part, well..... thats just part of the game, bud .





Anyways, back on the topic... NO, i've never checked my valvetrain geometry. If the old owner treated it anything like the bottom end, its all ****ed up and i need to give it a good once over. I just figured i could swap out my 1.6 rocker arms for the 1.7s no problem, since the stock cam guys do it all day long.

Joel5.0

...... since you have to do it anyway..... why not?