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I'm looking to put some tdc pistons in my rwd 3.4, and I was just wondering what year 3.4tdc pistons to use?
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91-95 show as same deck height as 3.4L RWD and 3cc less for about .5 more compression according to the compression calc on the site.sigpic
New 2010 project (click image)
1994 3100 BERETTA. 200,000+ miles
16.0 1/4 mile when stock. Now ???
Original L82 Longblock with LA1, LX9, LX5 parts
Manifold-back 2.5" SS Mandrel Exhaust. Hardware is SS too.
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What's a TDC piston?
Last edited by blownarrow; 11-09-2009, 11:59 AM.sigpicWhen I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car.
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twin dual camsigpic New 2010 project (click image)
1994 3100 BERETTA. 200,000+ miles
16.0 1/4 mile when stock. Now ???
Original L82 Longblock with LA1, LX9, LX5 parts
Manifold-back 2.5" SS Mandrel Exhaust. Hardware is SS too.
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In fact, you can use the zero deck TDC pistons too since the 3.4 gaskets are .040" compressed. That gives you a yummy quench.Comment
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ohhhh really!Originally posted by IsaacHayes View Post
Thank you for the explanation.. me dummy
wouldn't Quad Cam have been a Better name
Rolls off the tonguesigpicWhen I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car.
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What about valve relief?sigpicWhen I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car.
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Should not be an issue, the pistons do not have reliefs cut into them stock. 11.5:1 from 3500 heads and 3.4 RWD pistons do not make contact even with a hot cam, so I wouldn't worry. Only one I've seen run into problems is SuperDave but he has a TON of duration on his cam and is reving to very high RPMs on his 3500.sigpic New 2010 project (click image)
1994 3100 BERETTA. 200,000+ miles
16.0 1/4 mile when stock. Now ???
Original L82 Longblock with LA1, LX9, LX5 parts
Manifold-back 2.5" SS Mandrel Exhaust. Hardware is SS too.
Comment
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Ok so is there anymore info on this "ideal piston" where do i need to look to get these? WOT?Originally posted by ForcedFirebird View Post
same deck height, but 3cc lessOriginally posted by IsaacHayes View Post
so what's the diff?
And this will work with 3.4 RWD Iron heads?
I'm in the process of collecting part to do a 3.4 build and ditch my 2.8
and a higher compression piston would help out alot....Last edited by blownarrow; 11-11-2009, 12:50 PM.sigpicWhen I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car.
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What would be the advantage of using tdc pistons with 3.4 iron heads?Comment
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They are stock 3.4 DOHC pistons. There were 2 variations of them as far as I know, one had a zero deck, the other stayed int he hole a bit.Originally posted by blownarrow View PostOk so is there anymore info on this "ideal piston" where do i need to look to get these? WOT?
same deck height, but 3cc less so what's the diff?
And this will work with 3.4 RWD Iron heads?
I'm in the process of collecting part to do a 3.4 build and ditch my 2.8
and a higher compression piston would help out alot....
The difference is more compression!
Raising compression of course.Originally posted by ezrollin View PostComment
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kuol...
thankssigpicWhen I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car.
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Guess I should of said,advantage over 3400 pistons in a rwd.Are the rings lands beefier than the 3400?Originally posted by ForcedFirebird View PostComment
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Isn't the Alum head 3400? pistons dished?sigpicWhen I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car.
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Both RWD and 3400 pistons are dished somewhat. The outer edges are flat though. I know because I have 3.4 RWD pistons in a 3400 on an engine stand
If you put 3400 pistons in a 3.4 RWD with the stock iron heads, you would loose a lot of compression since the 3400 pistons hold more cc's. Plus the pistons come out of the block some, so you'd have to use a taller headgasket.
Opposite side, if you put 3.4 RWD pistons in a 3400, you'd get like 12.xxx:1 compression. If you drop 3500 heads onto the block, which have bigger chambers, the compression works out to 11.5:1.. That's what my setup is.. 3400/3500 3.4 RWD pistons...sigpic New 2010 project (click image)
1994 3100 BERETTA. 200,000+ miles
16.0 1/4 mile when stock. Now ???
Original L82 Longblock with LA1, LX9, LX5 parts
Manifold-back 2.5" SS Mandrel Exhaust. Hardware is SS too.
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