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Old Oct 18, 2005 | 07:57 AM
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Default Anyone bought this 402

I was wondering how good is the slp 402 short block. And does anyone have numbers of what it put down.
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Old Oct 18, 2005 | 08:26 AM
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IMO:
I wouldn't trust that shortblock as far as you could throw it.

Scoggin-Dickey, Texas Speed, or Speed Inc. offer some pretty bad *** combos!
You should see if you can get ahold of the GM High-Tech Performance magazine July/August Issue 2005. It has 15 or so short-blocks for under 5 grand, and all the specs.
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Old Oct 18, 2005 | 09:50 AM
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Don't forget HPE & LME. I wouldn't buy anything but a muffler or a lid from SLP.
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Old Oct 18, 2005 | 09:54 AM
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Originally Posted by Kounsy
I was wondering how good is the slp 402 short block. And does anyone have numbers of what it put down.
We would be happy to help you with a 402! Our std build up comes with :

*LS2 aluminum block
*Eagle 4.000 stroke crank
*Scat H beam 6.125 rods
*Diamond -14cc dish or -2cc flat top pistons
*Diamond plasma moly file fit rings
*Clevite rod and main bearings
*Durabond cam bearings
**Balanced and assembled**

We also install in each short block all dowel pins, and oil/coolant plugs. In the custom built crate you will also find the LS2 front cover, timming set, and valley cover. Ready to ship price is $4,095.00 + freight. We have upgrades available also. Let me know if I can help!!
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Old Oct 18, 2005 | 07:04 PM
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But dont the aluminum block sensors, differ from the ls1 sensors.
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Old Oct 18, 2005 | 07:40 PM
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Originally Posted by calongo_SS
Don't forget HPE & LME. I wouldn't buy anything but a muffler or a lid from SLP.
Yeah there were several listed in there, but those were the only ones that I could think of off hand at the time. I was looking at the LME one actually not too long ago.
I believe that Thunder Racing has a package as well...but by the looks of it I think that you already have some info on the SDPC 402 LS2...
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Old Oct 18, 2005 | 07:47 PM
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I just got mine up and runnig. I got the SDPC ls2 402 and the motor works great. There where a few little things that needed to be changed. but beside for that it's a great motor.
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Old Oct 18, 2005 | 09:19 PM
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what were some of the things you had to change.
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Old Oct 18, 2005 | 10:17 PM
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SLP would be on the BOTTOM of my list of shops to do the motor.

They won't back something as simple as an oil pump....couldn't imagine the hell it would be to try to get any help with a motor.
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Old Oct 18, 2005 | 11:53 PM
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Ya ive been hearing that, that they wont stand behind anything they sale, or u have to fight them tooth and nail,
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Old Oct 19, 2005 | 11:02 AM
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We stand behind everything we build, and do everything in house. Something a lot of the other guys can't offer. Give us a call and we'll take care of you..

Chuck
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Old Oct 19, 2005 | 11:08 AM
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Originally Posted by Chuck@HPE
We stand behind everything we build, and do everything in house. Something a lot of the other guys can't offer. Give us a call and we'll take care of you..

Chuck

Give these guys a call. Good shop, and good people.
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Old Oct 19, 2005 | 01:28 PM
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I was looking at this short block too. The price is sure right, but this thread scares the heck out of me. I was gonna look into the low cr version, and use my AFR 205s and T-trim with it. My rings are on the way out, so I'm gonna have to do something before Spring...
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Old Oct 19, 2005 | 02:24 PM
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Check out my sig for numbers on a smog legal 402. Rapid has a non smog legal 402 that puts down 553rwhp as well. First class job from start to finish. You can PM me if you have any questions at all, I'd be glad to help.
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Old Oct 19, 2005 | 05:02 PM
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Originally Posted by Z06 Tom
I was looking at this short block too. The price is sure right, but this thread scares the heck out of me. I was gonna look into the low cr version, and use my AFR 205s and T-trim with it. My rings are on the way out, so I'm gonna have to do something before Spring...
The price really isn't any better than most other shops will charge for the 402ci motors.

I got mine from TSP for $3800. Mine is an LQ9 block with an upgrade to Lunati Pro Mod rods.
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Old Oct 19, 2005 | 05:33 PM
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Originally Posted by Kounsy
I was wondering how good is the slp 402 short block. And does anyone have numbers of what it put down.

We have been selling LS2 402 shortblocks like crazy lately and have been seeing some excellent results!! Shoot me a PM and with your email address and I can get you a full estimate and itemized list with all the parts included.

-Zach
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Old Oct 19, 2005 | 06:28 PM
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...but SLP claims they make 900hp out of the box, so it must be a good motor.









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Old Oct 19, 2005 | 08:17 PM
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Originally Posted by Kounsy
what were some of the things you had to change.
There where a few things that you have to change
knock sensors location
lifter trays
timing chain
grind one side of block for motor mounts
put washers in windage tray to clear crank shaft bolts
and head studs.
I got my motor from SDPC and they give you most of what you will need.
I just got my car tuned and dynoed 450 rwhp 470 rwtq I used my old heads and intake and have a very small cam for Ca. smog.
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Old Oct 19, 2005 | 08:49 PM
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I would go with TSP, HPE, or Speed Inc; reputable and stand behind their products and work 100%. Their strokers and shortblocks are some of the best being built hands down.

I wouldn't and won't buy a thing from SLP ever. All of my interaction from them when I started modding was mediocre at best and ever since then my business has been with TSP who have taken excellent care of me everytime with no problems, issues, or complaints.
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Old Oct 19, 2005 | 09:46 PM
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What about like a 408 or 414, Same amount of hp or what?
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