Engine Rebuild Kit Question

hardlivinlow · Post by **hardlivinlow** » Thu Sep 17, 2009 12:03 pm

Ok i have a 2000 neon es. i got the engine out and stripped down and on the casting the date is 3-3-99. does this mean i can use a 96-99 engine rebuild kit? i found one on ebay cheap compared to the 800.00 price on the 00 to 05 kits.

http://cgi.ebay.com/ebaymotors/96-99-2- ... ccessories

so will this work?

excon · Post by **excon** » Thu Sep 17, 2009 3:03 pm

I'm sure others will chime in, but i believe it will work.

ragek23 · Post by **ragek23** » Thu Sep 17, 2009 4:39 pm

The pistons look like dohc. They should look totally flat. If you could get them in 10:1 compression ratio that would be mint. It would also be an amazing match to a worked head if you find one.

hardlivinlow · Post by **hardlivinlow** » Thu Sep 17, 2009 4:46 pm

so that kit and a nice mag head and comp 400 cam and a header would do just fine eh? think the stock rods would work with them pistons?

ragek23 · Post by **ragek23** » Thu Sep 17, 2009 4:53 pm

well i am kind of worried about that kit is what i meant, because the picture of the pistons isn't the ones you need. They look like dohc pistons which would give you 10.1:1 compression but, you would need to file them down do to clearance issues with them hitting the head.

I am also not sure if the timing belt tensor would be the same as what you need either. I would contact them about the details of the kit.

I would say tho however, if this does workout for you its a great deal.

hardlivinlow · Post by **hardlivinlow** » Thu Sep 17, 2009 5:00 pm

yeah i emailed them about the pistons. he may just use one picture for the dohc and sohc kits. im going to confirm. and also my timing belt ten. only has about 20K miles on it since i replaced it and the timing belt a year or so ago. but the water pump bearings took a dump and broke the belt again prolly causeing the valves to be warped since i was clicking along at about 70mph when it snapped. so that part im not to worried about. mostly the pistons and oil pump and gaskets.

hardlivinlow · Post by **hardlivinlow** » Thu Sep 17, 2009 5:46 pm

response:

Hi there,

The pistons in this kit is not flat top. We use the 420A DOHC pistons in this kit since the 420A pistons can also be used for the SOHC.

They work for stock rods.

thanks,
Helen

can some one confirm if i can use these or not? shes saying they will work in a SOHC engine. im getting confused here. my car is a 00 but the block casting is dated 99.

ragek23 · Post by **ragek23** » Thu Sep 17, 2009 5:51 pm

i don't think they realize u need to shave them. but technically yes you can use them u will just have to research on how to prep them for your build. These pistons will give you 10.1:1 compression if you do prep them. Which will match nicely with your top end plans.

hardlivinlow · Post by **hardlivinlow** » Thu Sep 17, 2009 5:57 pm

ok dont they make a spacer u can buy that goes under the head gasket? would this solve the clearance issues? if not do u know where i might can find some instruction on how to prep these pistons?

ragek23 · Post by **ragek23** » Thu Sep 17, 2009 6:00 pm

check neons.org the members there had encountered the problem. I was gonna put DOHC pistons in myself untill i found out on neons.org that people were having head clearance issues.

compare the 2 pistons:
Very high compression SOHC Pistons;
http://www.modernperformance.com/images ... images.JPG

notice where the piston is raised. On the edge of where it is raised it is milled down flush with the lower part of the piston.

The DOHC pistons from ebay:
http://cgi.ebay.com/ebaymotors/95-2.0L- ... 0001r28517

Notice the sides of the raised surfaces are NOT milled down flush! This is where people have had piston to head contact.

hardlivinlow · Post by **hardlivinlow** » Thu Sep 17, 2009 6:03 pm

cool. man thanks for your help.

ragek23 · Post by **ragek23** » Thu Sep 17, 2009 6:13 pm

i edited my post for some more info^

Post by **occasional demons** » Thu Sep 17, 2009 6:29 pm

Link to the above mentioned topic.

http://forums.neons.org/viewtopic.php?f=1&t=303507

hardlivinlow · Post by **hardlivinlow** » Thu Sep 17, 2009 8:21 pm

basically at this point at a thin angle?

ragek23 · Post by **ragek23** » Thu Sep 17, 2009 8:26 pm

yes pretty much, the .org thread explains it a tiny bit more. apparently you may not see contact unless you rev high (7200rpms) consistently but to be on the safe side i would file it down.

hardlivinlow · Post by **hardlivinlow** » Thu Sep 17, 2009 8:35 pm

oh well heck that's not a big deal at all. i was thinking major cutting. if that's all i gotta do to get a 10.1:1 then that's worth doing. i don't believe anyhow that i will be hitting them kinds of RPMs. this is just gonna be a peppy street car. I don't plan on redlining it. but i don't want those pistons hitting that head just incase i get froggy one day.

the kits details says

Compression Ratio: 9.8:1

is that useing a DOHC head? and when u use the SOHC head u get 10.1:1?

Post by **occasional demons** » Thu Sep 17, 2009 10:51 pm

C. R. for the DOHC is 9.6:1 stock.

IDK what that means, in terms of those pistons, tho.

either the pic is wrong, or the advertised c.r.

this is the trouble with dealing with an ebay vendor. Are they pulling specs out of their ass, or posting generic pics? The only way those could look like that, and have 9.8:1, is if the pin height was raised in the piston. (Thus lowering the dome in the bore.)

ZeroChad · Post by **ZeroChad** » Thu Sep 17, 2009 11:55 pm

DOHC pistons with a SOHC head net at least a .3CR raise.

If you're reusing your stock rods, make sure those pistons are pressfit and not C-clip! Common forged pistons for the 420a often have that side area prepped for SOHC, my Wisecos did.

hardlivinlow · Post by **hardlivinlow** » Fri Sep 18, 2009 10:32 am

iv got a email in to them to check that stuff and to see if maybe they can email me a side picture of one of the pistons to get a better look. if anything they said they will knock 65.00 off the kit not to include the pistons or rings and ill just get other pistons elsewhere. they gotta be cheap shit anyway to only knock off 65 for the pistons AND rings.