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Old 10-24-2013, 06:22 PM
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Whats up guys, I'm going this weekend to pick up my first LS. It's going in a 87 K5. The guy already has a victory jr on it and sensors plugged. Im going to need some help, so any advice would be nice.
Old 10-24-2013, 06:32 PM
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size ?
stock ?
usage ?
Old 10-24-2013, 06:42 PM
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1ts a 5.3,c5 z06 cam push rods and valve springs, and as far as usage its going in a 87 k5 blazer that has a 5.7 tbi, I drive on the weekends and to work occasionally.
Old 10-24-2013, 07:16 PM
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Being a 4x4 and a K5 (full size) Looking at sig and see it's lifted...you'd be best off to get a dual plane intake since it will be mostly under 6000rpms.
Old 10-24-2013, 07:35 PM
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I just looked at the pic he sent and it looks like a dual plane, I'll know for sure this weekend.
Old 10-24-2013, 08:06 PM
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and the blazer
Old 10-24-2013, 08:11 PM
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Old 10-24-2013, 09:47 PM
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That's a dual plane, do you have the msd to go with it??
Old 10-25-2013, 04:46 AM
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Yes, DP.

Good looking K5....mine was a 74 on 38's and swampers don't last long on the street. Ended up on grandprix (groundhawg look-a-likes).....aaahhhhhh the good ol' muddin' days miss that stuff....but got expensive.
Old 10-25-2013, 06:04 AM
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I do not have a msd box yet, I'm waiting to put my hands on the motor first. It's a craigslist deal.

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Old 10-25-2013, 06:07 AM
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Yes, DP.

Good looking K5....mine was a 74 on 38's and swampers don't last long on the street. Ended up on grandprix (groundhawg look-a-likes).....aaahhhhhh the good ol' muddin' days miss that stuff....but got expensive.

Thanks, that's a old pic and swampers definitely don't hold up well on the road I'm running KM2s now they ride much smoother.
Old 11-05-2013, 04:47 PM
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That motor deal fell through, but going tomorrow to pick up a complete 5.3. Maybe it was a sign to stick with injection.
Old 11-05-2013, 05:27 PM
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personally i'd stick with injection for offroading.
Old 11-05-2013, 06:45 PM
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They make off road carbs.
Old 11-05-2013, 07:37 PM
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Quadrabogs or sloberjets run extremely well on off road stuff, they will run in all kinds of positions
Old 11-05-2013, 08:12 PM
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Holleys work fine also with a few tricks.
Loop the bowl vents together with a breather hole at the highest point.
Spring loaded floats.
Both help to prevent fuel slosh....but nothings foolproof.
Old 11-06-2013, 06:27 AM
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I'm not going to beat on it anymore, it gets to expensive. I bought a 4l60e to. Still kinda confused on the fuel supply I know I need a different pump, but what else?
Old 11-06-2013, 06:28 PM
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Carbed ?
An electric fuel pump
and depending on pump....a regulator, a return line, and some fittings for what fuel line you're going to use.
Old 11-06-2013, 08:09 PM
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Just bought a 05 5.3 and 4x4 4l60e trans with t-case, it's got 90,000 miles on it. Needs a good cleaning and I just noticed the crank pulley has a chip on the edge,not sure if that's a big deal or not ill post pics tomorrow.
Old 11-07-2013, 07:20 PM
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Well here it is, but I guess on the ride home it bounced around and cracked the oil pan.



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