My Talon engine might be done and I may need a new lower end. I'm weighing the costs of rebuilding vs. new/used engine because I'll be having a mechanic do this.
I can get a full '98 Neon RT shortblock in great condition from a friend for cheap. It is to my knowledge that this is the same engine (420A) except with different facing engine heads. Would this shortblock work with my existing engine head? If not what would need to be done?
If this won't work at all, can anyone point me in the right direction for a good place/website that sells used talon/eclipse 420A's. There isn't any motors available at the local auto salvages.
Also, what would be a good price for a used engine with like 80k on it?
#103934, "RE: Neon shortblock in Talon/Eclipse?" In response to Reply # 0 Apr-17-07 02:36 PM by VelocitaPaola
It'll work just fine. DOHC shortblocks are identical, and SOHC shortblocks just had lower compression pistons. I believe '95 SOHC shorblocks had a funky PCV system cast into them, but with this bloc, you should be alright.
#103943, "RE: Neon shortblock in Talon/Eclipse?" In response to Reply # 1
Deej sold me his used longblock for 700 about a year and a half ago, for a shorty i'd say maybe 500
Erik P. Official 2GNT thread Hijacker Some say that he's driven over more Covenant than he's shot, and that his grenades aren't where you'd expect them to be... All we know is, He's not The Stig... But he is The Stig's Spartan cousin!
#103944, "RE: Neon shortblock in Talon/Eclipse?" In response to Reply # 0
Same block, different pistons.
______________________________ If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.
'95 Eclipse TurboGS (garage deco) '95 TSi AWD (restoring a survivor) '97 Talon ESi-T (poor impulse control) '99 Eclipse RS-T (daily beater) '13 Evo X (mostly stock) '17 Sienna (Middle Aged Dad Mobile)
#103946, "RE: Neon shortblock in Talon/Eclipse?" In response to Reply # 4
I believe DOHC pistons are the same. SOHC pistons do not have valve reliefs and would be a problem.
______________________________ If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.
'95 Eclipse TurboGS (garage deco) '95 TSi AWD (restoring a survivor) '97 Talon ESi-T (poor impulse control) '99 Eclipse RS-T (daily beater) '13 Evo X (mostly stock) '17 Sienna (Middle Aged Dad Mobile)
#103970, "RE: Neon shortblock in Talon/Eclipse?" In response to Reply # 5
Originally posted by DarkOne I believe DOHC pistons are the same. SOHC pistons do not have valve reliefs and would be a problem.
It'll work with the SOHC pistons, but you may lose a little compression. Also, you can't play with valve timing as much (if you have adjustable cam gears) or install higher lift cams.
There was a member that installed the SOHC short block with the DOHC head without any issues.
~Luke Facebook 1969 Cougar - 11.91 - 380HP 2007 GSXR 750 1999 OZ - SOLD - 15.26 NA - 14.71 on 75 shot
#103981, "RE: Neon shortblock in Talon/Eclipse?" In response to Reply # 7
Originally posted by N4cer Could you flycut the pistons? I know we did that on my LS1 car to allow me to mill the heads farther.
Why? Use the right ones to begin with.
______________________________ If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.
'95 Eclipse TurboGS (garage deco) '95 TSi AWD (restoring a survivor) '97 Talon ESi-T (poor impulse control) '99 Eclipse RS-T (daily beater) '13 Evo X (mostly stock) '17 Sienna (Middle Aged Dad Mobile)
#103982, "RE: Neon shortblock in Talon/Eclipse?" In response to Reply # 8
No need for attitude, bro. You're just misunderstanding, and I'm not making myself clear. I'm talking about when having the heads off of a stock shortblock. Not rebuilt. I thought that's what we were talking about here. Using a stock shortblock.
#103983, "RE: Neon shortblock in Talon/Eclipse?" In response to Reply # 9
Originally posted by N4cer No need for attitude, bro. You're just misunderstanding, and I'm not making myself clear. I'm talking about when having the heads off of a stock shortblock. Not rebuilt. I thought that's what we were talking about here. Using a stock shortblock.
Oh, no, no. The OP was asking about using a Neon shortblock in a 2GNT, and the Neon SOHC pistons don't have valve reliefs. All I was saying is that if he picks up a SOHC Neon shortblock, he should get some 2GNT or Neon DOHC pistons for it. I'm not sure you'd want to flycut a stock SOHC piston, though.. they're fairly thin.
______________________________ If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.
'95 Eclipse TurboGS (garage deco) '95 TSi AWD (restoring a survivor) '97 Talon ESi-T (poor impulse control) '99 Eclipse RS-T (daily beater) '13 Evo X (mostly stock) '17 Sienna (Middle Aged Dad Mobile)
#103987, "RE: Neon shortblock in Talon/Eclipse?" In response to Reply # 11
Originally posted by hfriend yes, the Neon shortblock is a DOHC.
Then you shouldbe fine. IIRC (but don't quote me on this) the Neon DOHC pistons are the same as a 2GNT piston. Anyone know for sure?
______________________________ If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.
'95 Eclipse TurboGS (garage deco) '95 TSi AWD (restoring a survivor) '97 Talon ESi-T (poor impulse control) '99 Eclipse RS-T (daily beater) '13 Evo X (mostly stock) '17 Sienna (Middle Aged Dad Mobile)
#103985, "RE: Neon shortblock in Talon/Eclipse?" In response to Reply # 10
Thanks for that, man. It's not very often that a misunderstanding like that gets resolved so smoothly. I like it here. Thanks again.
Oh and I didn't realize how thin they are. The GM ones I'm arbitrarily referring to are hypereutectic (junk), and are about 0.250" thick. Cutting 0.70-0.80" from them hurts nothing. Even on a 100 shot so far. Will be upped to a 150 shot as soon as the auto swap and slicks go on.
#103986, "RE: Neon shortblock in Talon/Eclipse?" In response to Reply # 13
Originally posted by N4cer The GM ones I'm arbitrarily referring to are hypereutectic (junk)
So are stock 420A pistons. I do not know the piston deck thickness offhand, though.
______________________________ If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.
'95 Eclipse TurboGS (garage deco) '95 TSi AWD (restoring a survivor) '97 Talon ESi-T (poor impulse control) '99 Eclipse RS-T (daily beater) '13 Evo X (mostly stock) '17 Sienna (Middle Aged Dad Mobile)
#104075, "RE: Neon shortblock in Talon/Eclipse?" In response to Reply # 14 Apr-30-07 06:43 AM by cougar694u
I thought the factory mahle pistons were just a standard aluminum/alloy cast piston and not hypereutectic.
I don't believe hypereutectic is junk, though, but more of a middle ground between standard cast and forged. I run Keith Black hypereutectic pistons in my cougar at 11.5:1 (possibly more now after blow head gaskets and milled heads) and haven't had a single issue with them. I think they're about to enter they're 4th racing season without a blemish.
~Luke Facebook 1969 Cougar - 11.91 - 380HP 2007 GSXR 750 1999 OZ - SOLD - 15.26 NA - 14.71 on 75 shot
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