searched but no luck. 88 4.2 intake on renix head

Swaping 258 to 4.0, 4.0 parts to 258 etc!
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Ol_blue
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Joined: January 11th, 2014, 6:41 pm
Stroker Displacement: 258
Vehicle Year: 1988
Vehicle Make: Jeep
Vehicle Model: Wrangler

searched but no luck. 88 4.2 intake on renix head

Post by Ol_blue »

Back story, I have a 88 yj with the good ol 258. I was given a known good, low mileage reman renix longblock for free. Seeing as my 258 has finally died I am planning on putting the 4.0 in with my 4.2 and weber. Once it's summer and I can ride my bike daily I will cannibalize the 4.2 to build a stroker. Anyways will the 4.2 intake fit on the 87-90 head using the same principle as the 4.0 ho? Thanks alot for your time and help guys!
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cruiser54
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Re: searched but no luck. 88 4.2 intake on renix head

Post by cruiser54 »

Unless someone pipes up who has done this, my first thought is go to the parts store and ask to see the intake exhaust gasket for a 258 and one for a Renix 4.0 and compare them.
Cruiser's Mostly Renix Tips can be found here :
www.cruiser54.com
Wanna view my technical photos? WARNING: Renix heavy!!
http://www.cherokeeforum.com/g/album/1725214
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IH 392
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Re: searched but no luck. 88 4.2 intake on renix head

Post by IH 392 »

The dowels are in the wrong location, they need relocated, and you'll need to use a 4.0 header too.
You can get more power out of ANY engine!!!
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cruiser54
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Re: searched but no luck. 88 4.2 intake on renix head

Post by cruiser54 »

Thanks. Ports match up pretty well? Couldn't you just eliminate the dowels?
Cruiser's Mostly Renix Tips can be found here :
www.cruiser54.com
Wanna view my technical photos? WARNING: Renix heavy!!
http://www.cherokeeforum.com/g/album/1725214
Ol_blue
Posts: 2
Joined: January 11th, 2014, 6:41 pm
Stroker Displacement: 258
Vehicle Year: 1988
Vehicle Make: Jeep
Vehicle Model: Wrangler

Re: searched but no luck. 88 4.2 intake on renix head

Post by Ol_blue »

I'm going to use the intake gasket as a template to notch the ears for the Dowels. I already have a renix xj header so im pretty well ready to get this under way when the vacation comes around. Going to oblong the hole for the power steering bracket and rock and roll. THANKS FOR THE ANSWERS AND HELP GUYS!
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IH 392
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Re: searched but no luck. 88 4.2 intake on renix head

Post by IH 392 »

cruiser54 wrote:Thanks. Ports match up pretty well? Couldn't you just eliminate the dowels?
Not if you want the manifold, gasket and head to align up worth a schit.

Ol_blue wrote:I'm going to use the intake gasket as a template to notch the ears for the Dowels.
that's doable.
You can get more power out of ANY engine!!!
ASE Master certified engine machinist, gas and diesel
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