4.7 (4.0 Stroker) Crater motor??? - JeepForum.com
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Unread 03-01-2003, 02:44 PM   #1
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Join Date: May 2001
Posts: 163
4.7 (4.0 Stroker) Crate motor???

I've been searching endlessly for information on this "Stroker" concept for the 4.0 and have found some really good information so far. This route appeals to me more than a V-8 swap because there seems to be less fabricating and adapters involved, which makes life easier and keeps costs at a mininum. Not to mention it keeps everything "JEEP". I was curious if there's a crate version of this motor available or is there simply just the kit that you can buy to perform this upgrade on your motor. It'd be great to buy one ready to install and then I could just sell my old one (120,000 miles) to a buddy of mine.

Side note: my friend approached me last week because I had been contemplating a V-8 swap for a while. He told me that if I found a V-8 of my choice, as well as the tranny and any other adapters that were needed, that he would install everything in exchange for my current motor and transmission (4.0, AX-15). I trust his work...the guy is good at what he does. Does that sound like a good deal? Or should I stick with the stroker idea? The only thing that worries me about putting a V-8 in is the stress on my stock axles, which I don't want to upgrade and the fact that I am not a so-called mechanic. If I had the know-how this wouldn't even be an issue.

All opinions are welcome.

1997 F-150
2000 Ford Explorer

Looking for a YJ!

Last edited by Keymaster; 03-02-2003 at 12:13 AM..
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Unread 03-01-2003, 03:05 PM   #2
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1988 YJ Wrangler 
Join Date: Nov 2000
Location: Calgary, AB
Posts: 6,879
A friend of mine put a 1987 Chevy 350 into his 1989 YJ, and had it attached to the stock AX15 tranny and stock axles. For the fun of it, he tried to bust something on that thing - ran it very hard - mud, trails, street, everything and could not break the tranny or axles (he had 33" MT's on the axles).

Slap the V8 of your choice onto the front of the AX15 and call it happy - or take the 4.0 into a machine shop, have it bored, stroke it - do the heads - and have yourself a SuperHero4.0 too.
Hello, my name is Vance and I am a Jeepaholic.
Its better to be naked with your friends, than to be clothed with your enemies
Silver 2006 TJ Unlimited, zombie ready as the daily-driver

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