LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Finally dynod my lt1 swapped 79 z28

Old 09-19-2016, 08:25 PM
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Default Finally dynod my lt1 swapped 79 z28

First off, it made a lot more than what I was expecting after researching all the forums. The car is my 79 z28 that I have restored over the last 6 months. Paint/full driveline/interior. I'll post up some pictures here shortly. Here is a run down of the mods.

1993 lt1 6 speed
Rebuilt by me with stock rotating assembly still std bore.
Clevite bearings
Total seal rings
Completely Stock heads with 918 valve springs and crane 1.6 golds
Cc503 camshaft
Ported lt1 intake
Hooker 1 3/4 long tubes
Full 3" mandrel bent exhaust with pro X1 borla mufflers.
Tuned sd by me with tuner pro :

It put down 374.5rwhp. For some reason they didn't show the torque number on the printout. I pulled it to 6500 but it didn't gain anything after 6k, but it never fell off . I showed up expecting 340-350 from what I've seen. Also this was on a dyno dynamics. For comparison my good friends 6 speed cam/Bolton ls1 trans am made 384rwhp but tbh I haven't retuned it since we put the ls6 intake on it a few weeks back. There also was 16 mustang 5.0 that put down 382rwhp stock. Anyways just thought I would share my results. It'll be going down the track here once the weather cools off a little more
Old 09-19-2016, 09:17 PM
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Last edited by Fade2blk500; 09-19-2016 at 09:24 PM.
Old 09-19-2016, 09:26 PM
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Nice job on the engine build
And, good looking car!
Old 09-19-2016, 11:13 PM
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Clean machine
Old 09-20-2016, 12:09 AM
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Nice numbers. Good looking machine. I had a 79z a long time ago. I wish I still had it at times.
Old 09-20-2016, 06:14 AM
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Beautiful car!
Old 09-20-2016, 10:35 AM
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Good looking rig, what valve covers are you using? Thanks
Old 09-20-2016, 11:11 AM
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Nice car and nice results!
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Old 09-20-2016, 12:09 PM
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Nice. You did some work to that car. Looks good.
Old 09-20-2016, 02:39 PM
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Nice.....looking.....job!!!

Yeah.....dyno looks a bit high, but whatever. Only thing that matters is if you're happy with it.

Now......get to the track and smoke some ponies!!

KW


BTW.....red intake manifold. You sure you don't have LT4 heads?
Old 09-20-2016, 06:07 PM
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Nice looking car the numbers are pretty stout as well awesome job.
Old 09-21-2016, 12:19 AM
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Originally Posted by cookseyb
Good looking rig, what valve covers are you using? Thanks
Thanks! I actually got them off eBay. They were only like 130 bucks if I remember right. The passenger side has the intention for the alternator and they clear with the gold 1.6 rockers no problem. Pretty good for the price
Old 09-21-2016, 12:24 AM
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Originally Posted by KW Baraka
Nice.....looking.....job!!!

Yeah.....dyno looks a bit high, but whatever. Only thing that matters is if you're happy with it.

Now......get to the track and smoke some ponies!!

KW


BTW.....red intake manifold. You sure you don't have LT4 heads?
To be honest with you it was about 20 higher than I was expecting. I just got some drag radials for it so It'll hit the track here soon and we will see if it will back it up

Lol I actually painted the intake red. It's just a lt1 but it has been ported. The heads are 100% stock though, I changed springs and seals, and sprayed them down real good.

Thanks for the compliments everybody. I'm almost 100% done with the car and I will start my 67 ss chevelle project ls/6 speed swap.
Old 09-21-2016, 12:26 AM
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Still on jack stands here. Gotta go get some shank style lugs for it .
Old 09-29-2016, 01:42 PM
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Sharp looking car, the wheels and stance are prefect!
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Old 09-30-2016, 09:49 AM
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Whats the part number for them 1.6 Cranes? I just got my CC Pro Magnum 1.6 RR #1418-16 But Im looking to upgrade with future mods. Thank you
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Old 09-30-2016, 09:28 PM
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What intake elbow is that? My stocker is haggard and most replacements don't match the shape of the throttle body like yours.
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Old 10-01-2016, 12:21 PM
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Great results.
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Old 10-03-2016, 09:37 AM
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Great power, car came out really nice. Good to see clean builds with Lt1s.
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Old 06-16-2020, 10:46 AM
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It’s been a few years, but just figured I’d do an update on the z28. Thanks again for the kind words and interest.

I added some cal trac bars, 20” torque thrust and a nitrous kit since the last update. I’ve mainly been focusing on my 79 5.3 turbo trans am but still play with the camaro from time to time.

I bought a dynojet at the beginning of last year and have made tons of dyno pulls with the camaro.
Dyno sheet is with 4 degrees of timing out and then a 100 shot.. It has made mid low 370’s a handful of times with 27 degrees on motor. Usually lingers in the high 360’s.

anyways hope you guys enjoy, happy hot rodding.
🍻 🍻 🍻

Craig

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