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-   -   gm create motor ? (https://67-72chevytrucks.com/vboard/showthread.php?t=763121)

sweetk30 05-02-2018 06:58 PM

gm create motor ?
 
https://sdparts.com/i-19928425-gm-en...te-engine.html

looking at this for my k30 project beater . will be th400/4.10 gear / 33.30 tire height . plow truck / trailer puller / work truck / dd use .

whats your guys feedback on this unit ?

b454rat 05-02-2018 07:10 PM

Re: gm create motor ?
 
Not bad for 2k. Dunno if its original or what, but my 98 Tahoe odometer says 253k, and with 3.42s it will get up and go. Slap a carb on it and will prolly run pretty good. Thinking this might be an option when time comes to replace my motor.

geezer#99 05-02-2018 07:23 PM

Re: gm create motor ?
 
Much better motor than the other crates.
Good heads, compression and better matched cam.

PGSigns 05-02-2018 08:54 PM

Re: gm create motor ?
 
I have about 45000 on mine now in the 66. Mild comp cam, super victor intake, 670 street avenger carb. I have an in tank pump with an aeromotive return style regulator. works flawless.
Jimmy

sweetk30 05-02-2018 09:09 PM

Re: gm create motor ?
 
i was planning on slapping a holley snipper on it .

the balancer and cover that comes on it have a timming pointer and marks ? i cant tell in the pics . since i will be running a hei dist with vac advance .

truckster 05-02-2018 10:45 PM

Re: gm create motor ?
 
If you want to wake that L31 up put a HT383 Crate/Ramjet 350 cam in it - part number 14097395.

sweetk30 05-02-2018 11:05 PM

Re: gm create motor ?
 
Quote:

Originally Posted by truckster (Post 8253213)
If you want to wake that L31 up put a HT383 Crate/Ramjet 350 cam in it - part number 14097395.

yep seen that a LOT of guys do it as a bolt in swap cam .

its 196.00 for the cam . . . and its on my order list .

Captainfab 05-02-2018 11:12 PM

Re: gm create motor ?
 
A L31 engine with the Ram Jet 350/HT383 cam is a great running engine. It makes great torque even with the 1.5 rockers.

sweetk30 05-02-2018 11:17 PM

Re: gm create motor ?
 
well with all the feedback from here i think its time to make a few calls for the best deal and get it coming . need this truck rolling soon .

PGSigns 05-03-2018 06:32 AM

Re: gm create motor ?
 
I had the sniper on mine and pulled it. Had a bad habit of just shutting off going down the hiway. Go on the holley forums and go through the sniper section. They are having some issues.
Jimmy

Kudzupatch 05-03-2018 07:02 AM

Re: gm create motor ?
 
Looking at this engine for a swap too. Just keep in mind since you are not putting this in the specified vehicle the warranty is only going to be 12 months.

Jeggs has had this on sale in for somewhere around $1850 I think.

AnotherWs6 05-03-2018 10:32 AM

Re: gm create motor ?
 
Have you checked out blueprint?....

https://blueprintengines.com/collect...50-base-engine

chevy_mike 05-03-2018 11:06 AM

Re: gm create motor ?
 
The GM L31 engine is one of the best values out there. One piece rear main seal, roller cam and Vortec heads. Great combo as long as you can deal with it not supporting a mechanical fuel pump. You need to use a Vortec specific manifold and flex plate/flywheel for a 1 piece rear seal but outside of that, they are great.

Kudzupatch 05-03-2018 12:44 PM

Re: gm create motor ?
 
Quote:

Originally Posted by chevy_mike (Post 8253496)
The GM L31 engine is one of the best values out there. One piece rear main seal, roller cam and Vortec heads.

That is exactly why I keep coming back to the engine for my swap. I would like more performance than this, but anything with more power is higher and doesn't have all the goodies this one has. Plus, per Scoggins Dickey it has 330 Ft. Lbs of torque at 2800 rpms. Right were you drive it most times.

Yes, you can do a cam swap but then that voids the warranty.

sweetk30 05-03-2018 06:24 PM

Re: gm create motor ?
 
Quote:

Originally Posted by AnotherWs6 (Post 8253472)
Have you checked out blueprint?....

https://blueprintengines.com/collect...50-base-engine

why pay more for a reman motor and less goodys inside . . . not that it dosnt sound like a bad motor but the 1 i linked is 1880 free shipping on ebay from a few places all day long .

truckster 05-03-2018 06:25 PM

Re: gm create motor ?
 
Put that cam in it and you'll go up to about 330 HP and 390 Ft-Lbs.

sweetk30 05-03-2018 06:57 PM

Re: gm create motor ?
 
Quote:

Originally Posted by truckster (Post 8253842)
Put that cam in it and you'll go up to about 330 HP and 390 Ft-Lbs.

what cam ? we have talked about a few .

what engine ? there is a few links in here .

truckster 05-03-2018 09:37 PM

Re: gm create motor ?
 
L31 engine with the Ram Jet 350/HT383.

sweetk30 05-03-2018 10:03 PM

Re: gm create motor ?
 
ah got ya . thats what i was planning .

sleepertruck72 05-03-2018 11:41 PM

Re: gm create motor ?
 
check out the GMPP 350 HO Crate engine...its the same L31 Vortec, rated at 330 HP 380 ft lb torque...:chevy:

sweetk30 05-04-2018 07:28 AM

Re: gm create motor ?
 
Quote:

Originally Posted by sleepertruck72 (Post 8254059)
check out the GMPP 350 HO Crate engine...its the same L31 Vortec, rated at 330 HP 380 ft lb torque...:chevy:

dont have a few items to run out of the box you need to buy and its a flat tappet cam option . and power is up top more than the other by the looks of it .

nice option but i dont think its for me and my build. i am doing a k30 work truck and dont need to get crazy . i have other trucks for that .

chevy_mike 05-04-2018 11:12 AM

Re: gm create motor ?
 
Quote:

Originally Posted by sleepertruck72 (Post 8254059)
check out the GMPP 350 HO Crate engine...its the same L31 Vortec, rated at 330 HP 380 ft lb torque...:chevy:

Yeah, it sucks that GM put a flat tappet cam in this engine, even though it's setup for a factory roller cam.

truckster 05-04-2018 11:37 AM

Re: gm create motor ?
 
Quote:

Originally Posted by sleepertruck72 (Post 8254059)
check out the GMPP 350 HO Crate engine...its the same L31 Vortec, rated at 330 HP 380 ft lb torque...:chevy:

But if you buy the L31 engine and the Ram Jet 350/HT383 cam you'll easily get that much power, but it will be in a lower power band and you'll have a roller cam.

sweetk30 05-04-2018 05:40 PM

Re: gm create motor ?
 
Quote:

Originally Posted by truckster (Post 8254315)
But if you buy the L31 engine and the Ram Jet 350/HT383 cam you'll easily get that much power, but it will be in a lower power band and you'll have a roller cam.

and for a big heavy truck you need the power band lower than up top .

sweetk30 05-04-2018 07:29 PM

Re: gm create motor ?
 
so do i buy the engine and run it for what it is ?

or do i . . . .

buy the cam and install it then run it and say to hell with the warranty ?

that is the BIG question . . . .


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