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Main : Members : GreaseMonky 08

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08
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SubmitterGreaseMonkyMore Photos from GreaseMonky   Last Update2005/2/5 7:29    Tell a friendTell a friend
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Here is a shot of the fresh Z20 I am building for my 1200.  The build includes a stock Z20 block, (bored .030), a Z24 steel crank, (balanced), Z20 rods (also balanced) factory head w/ a street port, higher tension double springs, 3 angle vlave grind, ported HKS side draft intake, dual Mikuni phh44's, Doug thorley tri-y header with ceramacoating, Larger cam, MSD 6AL, hot box, Aluminum flywheel, 91 240sx 5 spd, and a centorfoce dual friction clutch.  Ill get some more pics of the motor up soon, But dont forget I need Parts  :)

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Poster Thread
GreaseMonky
Posted: 2005/2/5 22:39  Updated: 2005/2/5 22:39
Home away from home
Joined: 2004/10/21
From: Vancouver WA. U.S.A.
Posts: 392
 Re: 08
So i guess my question is what rear diff should i use??, I was told from B110Dat, that the stock wont hold the power, of the the new motor, Im looking for tips that others have used, not sure what kind of power it will produce, but, I think it should be desent

Poster Thread
ddgonzal
Posted: 2019/3/22 23:37  Updated: 2019/3/22 23:38
Moderator
Joined: 2001/5/3
From: Hawaii, USA
Posts: 30128
 Re: 08
I know this is an old question but it's a good one. Lots of rear end choices for the B110 that can handle it. See our tech article Rear Axle Swaps. Perhaps the easiest are H165 from Datsun 1200 Truck or H190 from Datsun 320 truck (neither need narrowing). Nissan only used H165 or bigger behind the Z engines


Factory stock Z engines had balanced crank & rods and 3-angle valve job. The combo of 85mm bore Z20 with 89mm stroke Z24 crank results in 2020cc (compared to stock Z20 with 1952cc). So that's an increase of 66cc

factory ratings
* 89hp @ 5000 rpm Z20S (single carb)
* 99hp Z20E (EGI i.e. port EFI)
Since these are manufacturer ratings, they are net at the engine

I'd guess with the ported head, larger carbs, camshaft and exhaust headers it might make around 115 hp @ 6000 rpm and 101 ft. lbs. torque. The bolt-in H150 from 1975-1982 will handle that torque if you don't drag race it