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Old 01-23-2014, 10:15 AM   #61
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What aftermarket Magnum parts are you looking for? There is a ton of aftermarket support for the Magnum motors. I've built a couple of Magnums & LA small blocks.

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Old 02-03-2014, 12:44 AM   #62
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What aftermarket Magnum parts are you looking for? There is a ton of aftermarket support for the Magnum motors. I've built a couple of Magnums & LA small blocks.
Just something to up the HP and torque. Whatever will work and still keep it Cali legal-ish. Cams, headers, intake, exhaust, etc.

The block is a Magnum block if anybody was confused or needed clarity...

Sucks that the heads sat outside for too long, some water got onto the bottom of one and rust has began eating it

Going to need to get both of them resurfaced I suppose... The block head still looks fine to me. Moved them into my basement and coated all the shiny with a generous layer of oil to keep moisture off, also covered them up with rags.

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Old 02-03-2014, 03:08 AM   #63
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Hmmm, not sure on the cali legal deal. You'll have to make the call. I always recommend Hughes for Magnum motors. Their stuff is top shelf.

If you plan on keeping the keg intake be sure to do the plenum plate & gasket. The Magnum motors were notorious for blowing the factory gasket & burning oil as a result. So bad that Chrysler put out a recall on them. Here's the kicker, instead of fixing the problem, Chrysler just re-flashed the computer & retarded the timing to get rid of the associated pinging folks were getting as a result of a blown gasket. You can read all about this online. It's called the death flash. Death flash because it makes the vehicle a gutless turd. A re-flash or a programmer such as hypertech or superchips is the only way to get rid of it.
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A set of Harland Sharp 1.7 rockers are a great investment. Well worth the money. The factory cam in the Magnums is a lazy cam, the 1.7's wake it up a bit.
Untitled 1

A 50 or 52mm throttle body is a good power adder, but i wouldn't mess with it since it'll raise the power band up. Since it's going in a Jeep you'll want the power band down low. The original TB will be fine for that.

Anyways, there's lots of stuff out there for them, you'll just have to dig on the internet to find it. Magnums are the black sheep of the big 3. Not as much support, but it's out there.
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http://i42.photobucket.com/albums/e3...g?t=1411201524
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Old 02-03-2014, 10:33 PM   #64
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Excellent to know.

Anything on the exhaust system? Headers? So long as they look factory-ish, that's all I care about, in particular I'm going to need center dump headers.
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Old 02-04-2014, 06:45 AM   #65
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The Magnum manifolds flow better than the old LA manifolds, but still not as good as headers. Headers compliment the 1.7's very nicely, but I don't know what all it takes to swing headers out in Cali. I think one of the guys on here that did the swap was using Durango manifolds? Magnums love an X pipe as well. They've always seemed to help out on my applications. Mufflers are just up to you, Magnaflows sound good. IMO.

If you can get away with it, a nice set of headers would be a good investment. Not sure what choices you have for a Magnum in a YJ with the fitment issues & all.
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http://i42.photobucket.com/albums/e3...g?t=1411201524
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Old 02-04-2014, 07:09 AM   #66
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dash parts

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I'm getting a donor GC, so whatever the engine needs to operate I will pull off of it

My yard is slowly turning into a junkyard. As of today, here is where we are at:











Most of my extra parts are for sale, fenders, carpet, dash, etc. I won't ship the larger items though. If anyone is interested...
If you still have the dash, I need a center section with gauges.deb70br@att.net
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Old 02-04-2014, 12:26 PM   #67
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If you still have the dash, I need a center section with gauges.deb70br@att.net
PM me.
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Old 02-04-2014, 12:28 PM   #68
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The Magnum manifolds flow better than the old LA manifolds, but still not as good as headers. Headers compliment the 1.7's very nicely, but I don't know what all it takes to swing headers out in Cali. I think one of the guys on here that did the swap was using Durango manifolds? Magnums love an X pipe as well. They've always seemed to help out on my applications. Mufflers are just up to you, Magnaflows sound good. IMO.

If you can get away with it, a nice set of headers would be a good investment. Not sure what choices you have for a Magnum in a YJ with the fitment issues & all.
I want to try to get away with headers pretty badly. Even if it means fitting the heat shields back over them to disguise them. Maybe run some OEM headers for the initial inspection, then swap in the new headers.

Worst case scenario is I use a pair of OEM headers for smogging then swap back after the smog.
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Old 02-04-2014, 12:35 PM   #69
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I want to try to get away with headers pretty badly. Even if it means fitting the heat shields back over them to disguise them. Maybe run some OEM headers for the initial inspection, then swap in the new headers.

Worst case scenario is I use a pair of OEM headers for smogging then swap back after the smog.
I think the ONLY way you can get away with it, is if you find some smog legal headers for the DONOR vehicle and swap them with the engine to your Jeep.

So, finding center dump headers for a GC? good luck man...
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Old 02-04-2014, 04:22 PM   #70
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I think the ONLY way you can get away with it, is if you find some smog legal headers for the DONOR vehicle and swap them with the engine to your Jeep.

So, finding center dump headers for a GC? good luck man...
Where there's a will there's a way!!

The problem I have is I'm switching to a manual trans, and the starter will get in the way of the header output, that's why I need center dump.

Besides, what's the BFD if it passes smog anyways?

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