big bore kit for 420a

[blesi660r]

well i am looking to start a winter project, and i am woundering if any one knows of a good bore kit! or should i just buy every thing one peace at a time!

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[FattyBoomBatty]

What kind of car is it? Just get some nitrous for that beast.

[blesi660r]

95 gs eclips! i could, but i dont really like the idea of having my baby on the bottle! i am going to build up and run an ass load of boost

"the only replacement for displacement, is a big ass turbo:D "

sorry bad spelling, it's to early for me:rolleyes:

[scheides]

You should consider doing a 4G63 swap. You can get longblocks for real cheap, and they are pre-built for boost! I would even venture to say the 1G 6-bolts are pre-built for 'ass loads' of boost, with their low-ass compression: 7.8:1 !

'Big Bore' kits usually work well for bigger motors, since going .040 over on 8 cylinders of a 5.7L will yield a lot more displacement than going .40 over on a 4-cyl 2.0L. Might wanna do the math and see how much it'd be worth :)

[niterydr]

Building the motor for boost will probably make you lose power overall when you are still N/A. Your best bet is to have a turbo kit installed that is designed for the stock motor, build the motor and turbo system at once, or possibly purchase a more boost friendly car. (or motor swap)

[rst95eclipse]

I used to be into the 420a platform. I must say it was much easier to work on than a 4g63. The engine does have potential, but it doesn't come out of the box with it. Many people say that you should just do a 4g swap. I say you should head over to 2gnt.com and search over there, since you'll get a better responce over there. This is more of the GST/X crowd, however all Mitsu's are welcome.

[v8klla]

The nice thing about the 4g63's is the vast amount of parts available for them as they are turboed stock.

Anyways, I would steer you away from buying a kit and piece together exactly what you want to reach your goals, at least in regards to the motor. Is it turboed already, or is that a future plan as well?

[blesi660r]

ok i am dumbfounded here! i was going to do a first to second gen swap but it take way to much custom fabing all the mounts are in totaly different places, and tranny is on opposit side's
what i am woundering is the 2g 4g63 have the same mounting possisions as a 1g 4g63.

but ya i did a lot of reserch on that type of swap and it's impossibe for me to do!

sorry for bad spelling

[x-pride]

ok i am dumbfounded here! i was going to do a first to second gen swap but it take way to much custom fabing all the mounts are in totaly different places, and tranny is on opposit side's
what i am woundering is the 2g 4g63 have the same mounting possisions as a 1g 4g63.

but ya i did a lot of reserch on that type of swap and it's impossibe for me to do!

sorry for bad spelling

U R correct NA and turbo motors don't match up nor does the ECU or wiring. Not to many people here care or know about NA 2G's besides they are slow and takes to much money to build. I would recommended doing what Josh says or just go out and buy turbo car to start.

[acidrumz]

U R correct NA and turbo motors don't match up nor does the ECU or wiring. Not to many people here care or know about NA 2G's besides they are slow and takes to much money to build. I would recommended doing what Josh says or just go out and buy turbo car to start.


i guess you already have a n/a 2g to arrive to that solution that they are "slow and take too much money to build" ?

there are endless possibility if you apply yourself with the right resources and positive attitude!

goodluck with what you end up doing.