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Author Topic: Neon Block????  (Read 514 times)
Ballinboy2318
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Neon Block????
« on: June 14, 2007, 04:37:16 AM »

What all do i have to do to use a 420a block from a neon on the head off of my avenger?Huh? Need to know as soon as possible thanks
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Darktengu
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Re: Neon Block????
« Reply #1 on: June 14, 2007, 12:02:33 PM »

Um take the block out of the neon and the head off your avenger......  Grin

As far as I know you don't need to do anything special.
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Nykon
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Re: Neon Block????
« Reply #2 on: June 14, 2007, 02:03:59 PM »

yup, as long as it is the 420A Block you are good to go.
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Shaggers
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Re: Neon Block????
« Reply #3 on: June 18, 2007, 07:49:32 AM »

I thought I remembered seeing somewhere that they won't interchange.  Aren't the heads on the Neon backwards compared to an Avenger, the exhaust comes out the back instead of the front?
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Darktengu
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Re: Neon Block????
« Reply #4 on: June 18, 2007, 12:12:51 PM »

The head is on backwards, so you can't use that.  But the block is the same. 
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Shaggers
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Re: Neon Block????
« Reply #5 on: June 19, 2007, 01:14:59 AM »

Ahhh, I knew something was backwards with those Neons.
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CJ Draper
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Re: Neon Block????
« Reply #6 on: July 20, 2007, 12:46:25 PM »

As long as it's a 420a block with your head your good to go...  and yeah, backwards is one way of describing a Neon   Wink
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ken
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Re: Neon Block????
« Reply #7 on: July 20, 2007, 09:31:35 PM »

a 420a is a 420a man,  sebring, avenger, eclipse, talon, or the bass ackwards neon (peon)  same motor, same parts.
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Shiano
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Re: Neon Block????
« Reply #8 on: July 21, 2007, 09:50:50 PM »

only the block. a '78 350 is not the same as a '95 350
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ben johnson
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Re: Neon Block????
« Reply #9 on: July 24, 2007, 12:01:27 AM »

I've always wondered about the sohc neon 420a will it work? Just curious.
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Nykon
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Re: Neon Block????
« Reply #10 on: July 24, 2007, 01:21:46 AM »

Please refer to the rest of the thread that you apparently neglected to read...

Quote
a 420a is a 420a man,  sebring, avenger, eclipse, talon, or the bass ackwards neon (peon)  same motor, same parts.

Quote
As long as it's a 420a block with your head your good to go...  and yeah, backwards is one way of describing a Neon

Quote
The head is on backwards, so you can't use that.  But the block is the same.

Quote
yup, as long as it is the 420A Block you are good to go.

FYI
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Shiano
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Re: Neon Block????
« Reply #11 on: July 24, 2007, 04:46:26 AM »

And the votes are in..............

machine shop is the next step.
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Rob
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Re: Neon Block????
« Reply #12 on: September 09, 2007, 07:42:24 PM »

Okay, just to be sure, does this mean that aftermarket hi-compression pistons for a Neon will fit the Avenger too? I'm like 99% sure they will, but don't want to buy a set and find out some piddly little thing won't let me use them Sad SOHC and DOHC pistons interchange too or no?
« Last Edit: September 10, 2007, 08:34:52 PM by Rob » Logged

Dropping a boosted '96 420A in an '87 GLHS
Shiano
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Re: Neon Block????
« Reply #13 on: September 11, 2007, 07:41:59 AM »

ok. the pistons I would be iffy about. In order for a piston to do it's job [compressing the fuel/air mixture inside the cylinder], it must have a cylinder head attached to the block. Since the heads for a neon NEVER should be used on an Avenger or Eclipse, I wouldn't.

You use Utensils to eat food with, but you don't use a fork for soup.

Make sense?
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Rob
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Re: Neon Block????
« Reply #14 on: September 11, 2007, 01:16:05 PM »

Yeah makes sense, I was thinking that the valve reliefs would be a bit different, since the intake and exhaust valves are reversed.
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Dropping a boosted '96 420A in an '87 GLHS
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