n42 head

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Oct 23, 2003 | 12:23 AM

speedgato2

Thread Starter

Registered User

Joined: Mar 2003

Posts: 80

From: tucson

n42 head

hey fellas.
how can you tell if you have a n42 head?
also, how can you tell if you have the flat top pistons?

i have an 82 zx n/a.

also, where do i get the 4:11 gears?
thanks for the help.

Oct 27, 2003 | 07:45 PM

SHADY280

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Posts: n/a

YOU CAN TELL AN N42 HEAD BY THE CASTING NUMBER ON THE FRONT OF THE CYLINDER HEAD ON THE PASS. SIDE, BEING AN 82 N/A, IT WOULD HAVE FLAT TOP PISTONS. DON'T KNOW ABOUT THE 4:11'S THOUGH, MAYBEE STICK TO LOWER GEARS LIKE 3:9S IF GAS IS ANY IMPORTANCE TO YOU

Oct 28, 2003 | 06:42 PM

speedgato2

Thread Starter

Registered User

Joined: Mar 2003

Posts: 80

From: tucson

hey thanks.
i never knew where to find that info.

4:11 to stiff, huh?
gas mileage not really an issue, but would it be a worth while upgrade? i.e make a HUGE difference?

Oct 29, 2003 | 08:09 AM

Bleach

The Evil Twin

Joined: Mar 2001

Posts: 9,296

From: Seattle, WA

It'll make a noticable difference. I say go for it. I liked my ZX with the 4.11 a lot. Sold it a few years ago though...

If you drive easy, 2900rpm or 3050rpm on the freeway doesnt' make even 1mpg difference while cruising. Don't worry about the gas milage. Mine varies so much anyway mostly dependant on my driving habbits, not my gear ratios. Keep your foot off the pedal if you want to conserve fuel. The '82 has the super tall 5th gear so you're good there.

Oct 29, 2003 | 01:07 PM

speedgato2

Thread Starter

Registered User

Joined: Mar 2003

Posts: 80

From: tucson

thanks again bleach!
i 'm going to try to find a 4:11 this weekend.
i drive pretty heavy footed in town....but stay pretty mellow on the highway.

(guess that sounds backwards, but there is more braking and turning in town..plus i like to kill ricers in my sleeper "82)