edelbrock 2.02 w/stock pistons???

[white1988gt]

has anyone ever ran or know about useing a set of edelbrock heads with 2.02 valves with stock pistons?? also they have 1.6rockers and im using the stock cam.... all info would be great thank you

 

[JJFIVEOH]

You will not have any problems.

 

[MUSTHAVE302]

you shouldn't have any valve clearance probs - but the valve relief in the stock piston is too small if you got w/ a cam that has a lot of lift or duration. If you swap the cam, you should check piston to valve clearance. Most people are able to run .500 lift cams w/ no trouble though.

 

[65StangBoy]

Do you know for sure that they wont have problems? I have a 91' shortblock that we just put 2.02 Edelbrocks on. We DID have clearance problems, the valves actually touched the pistons. We had to take a decent amount of material out of the pistons for them to clear. We thought it had a stock cam but if we're hitting and others aren't, maybe the previous owner put a cam in.

 

[keith black]

i agree with 65stangboy edelbrock them selves told me i would have to cut away some reliefs on the stock trw pistons. 92' notch

 

[blown93feature]

If you have forged pistons with 202 heads you will have to fly cut the pistons in order to get that minimum .100's clearance to be safe if you had the flat top hypers you would have no problem with all the way up to 1.73 rr's with those heads especially with a stock cam but my ? is why the stock cam with a set of heads of that caliber.

 

[SmockDoiley]

Bottom line. ONLY TrickFlow 2.02 valve heads can be ran with stock pistons. I dont care what anybody else says. Call the companies yourself and they will say the same thing. It doesnt matter if they are hyper or forged. They specifically make a head with smaller valves for this very reason. And a stock cam will work fine with these heads. My friend did it with Trickflow heads and they flow just the same as the edelbrock RPM heads.I just checked with edelbrock and the 1.90 head is for stock pistons, and the 2.02 head is for aftermarket pistons.

 

[maverick0716]

I'll just hammer the point in. 2.02 valves WILL hit the pistons ONLY Trickflow heads will clear.

 

[2000xp8]

I know this is an old post, but figure why add another thread. So how about TFS Track Heat heads with 2.02 valves with stock pistons? I know that sometimes this works and sometimes it doesn't.

I have an opportunity to get a brand new set, with about $400 in machine shop work, for a good price. But the price is not good enough to buy them and resell them, especially since i don't have the time or interest to turn them over. But i know where they've been, so no guessing about the quality of work. And as i said, never been on a car.
Obviously it's only a good deal if they fit my car, i'm not one of those guys that says it's a good deal so i buy them, even though it won't work.

Here's my cam specs

http://www.cranecams.com/?show=brow...=302 C.I.&partNumber=444225&partType=camshaft
At the moment i have 1.7 rockers, but since i'll need new ones for these heads, i could get 1.6's if necessary anyway. But i don't have any interest in a cam change.

Thanks,
Joe

 

[Js90Lx]

My factory pistons, e-cam and 2.02 edelbrocks cleared

 

[2000xp8]

My factory pistons, e-cam and 2.02 edelbrocks cleared

That's not the first time i've heard or seen that.

I'm just getting a feel for what my odds are with the 2.02 valves working.

Supposidly the manufacturers say not to use them to cover their butts, because from what i hear most of the time it works, but now and then it doesn't.

 

[shttygtstang]

EDELBROK 2.02 VALVES F CAM 1.7 RR COMETIC GASKET LITTLE THICKER THAN STOCK

CLEARED

 

[Michael Yount]

Each combo is different guys - with tolerance stacking the same set of components on two different engines can have adequate clearance on one, and inadequate on another. You have to measure your engine if you want to know for sure you have enough clearance. There's no way around it. Measure - no one else can tell you with certainty what's gonna happen with yours. You're lookin' for min. .080" intake/.100" exh

 

[Michael Yount]

Oh - musthave302 - peak lift has nothing to do with p to v clearance. At peak lift the pistons are WAY down the cylinders. When changing cams, if all else stays the same, it's earlier opening intake timing and later closing exhaust timing that reduces clearance. That's because things are tight during overlap - when intake is just opening, exhaust is about to close, and the piston is passing through tdc at the end of the exh. stroke/beginning of the int. stroke. Consequently, with a cam change it's increased duration and/or more overlap and/or tigher LSA's that decrease clearance.