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Dec 2, 2019 | 05:29 PM

1958

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first time here and first ls base engine. educate me on what i have .engine came out of a 2008 gmc van it has rectangular port heads i need all the help i can get thanks

Dec 2, 2019 | 05:36 PM

1958

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forgot to mention it is a iron block with aluminum heads

Dec 2, 2019 | 05:40 PM

Tuskyz28

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From: Mississippi

LY6 engine. A cam swap alone with net you 530 plus horse easily.

Dec 2, 2019 | 05:40 PM

G Atsma

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From: Central Cal.

You have an LY6 if its a 6.0 out of an '08 Express or Savana
364HP, 383#/ft.
9.6:1 compression
Cam is 196/208, .467/.479 116LSA (Summit specs page)

Dec 2, 2019 | 05:48 PM

1958

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yes its out of a 3/4 ton gmc van i would like to make about 575 to 600 hp out of it but dont know where to start. should i reuse heads that are on it and have them ported or buy aftermarket

Dec 2, 2019 | 05:51 PM

G Atsma

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The heads are pretty good as is, but a light CNC port job will not hurt at all. You mainly need a cam. Call a cam grinder for the best advice.

Dec 2, 2019 | 05:52 PM

1958

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forgot to mention it cam out of a wrecked van so i dont know anythig about mileage or running condition so im going to tear it apart and install forged rods and pistons

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Dec 2, 2019 | 06:14 PM

Tuskyz28

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What kind of car is the motor going into ?

Dec 2, 2019 | 06:18 PM

#10

1958

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so i guess the rods and piston will handle that hp ok then may just pull heads and pan off and take a look at it

Dec 2, 2019 | 06:22 PM

#11

1958

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thinking about putting it in a 96 s10 2 wheel drive pickup i have that has a blown engine. i know i will have to change out the drive train for something beefier or put it in a 67 chevy shortbed that i currently have a 383 in

Dec 2, 2019 | 06:26 PM

#12

1958

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i guess i would have to change out injector for larger ones and have the computer re flashed also

Dec 2, 2019 | 06:28 PM

#13

Tuskyz28

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From: Mississippi

Quote:

Originally Posted by 1958

A intake can make or break your whole motor... its not just the cam that matters. I recommend you reading this article here.

https://www.hotrod.com/articles/gian...dyno-shootout/

Dec 3, 2019 | 06:20 AM

#14

1958

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TuskyZ28 that was a good article from what i gather from it it looks like the intake that on the motor is a pretty good intake just ugly as hell. do you have a cam grinder that yall recommend or a specific cam that you know works good in a light truck or one that works in a heavy truck thanks
k

Dec 3, 2019 | 06:38 AM

#15

Tuskyz28

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I personally like Pat G. Alot of guys on here swear by Cam motion as well too.

Dec 3, 2019 | 10:42 AM

#16

G Atsma

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From: Central Cal.

Quote:

Originally Posted by Tuskyz28

I personally like Pat G. Alot of guys on here swear by Cam motion as well too.

^^^^^^This, plus TSP has some good cams and can advise on them. If a good cam recommendation is what you need, these guys can help you.

Dec 22, 2019 | 08:27 AM

#17

cmysix

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From: Opelika Alabama

Quote:

Originally Posted by Tuskyz28

LY6 engine. A cam swap alone with net you 530 plus horse easily.

I just have to ask, then why am I 55-60 short on a LS2 heads and cam, intake.

Dec 22, 2019 | 08:54 AM

#18

Tuskyz28

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From: Mississippi

Quote:

Originally Posted by cmysix

I just have to ask, then why am I 55-60 short on a LS2 heads and cam, intake.

exactly what heads, cam and intake are you running?

LS3/L92 heads flow better than LS2 243 heads.

The LS3 GM intake flows great as well for a factory piece. A Fast 102mm cathedral intake might just help you tremendously.

It dont take much of a cam to make a LS3 headed combo to come alive. Im running a 229/244 from BTR with my LS3 heads and its a healthy motor.

Look in the dyno section.... its nothing for a cammed LS3 headed motor to put down 475 at the rear wheels.

Dec 22, 2019 | 11:12 AM

#19

G Atsma

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From: Central Cal.

If you are using the STOCK LS2 intake, that is choking it. The Dorman replacement is far better, as they used old FAST tooling to design it.

Dec 22, 2019 | 11:27 AM

#20

cmysix

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From: Opelika Alabama

Quote:

Originally Posted by G Atsma

If you are using the STOCK LS2 intake, that is choking it. The Dorman replacement is far better, as they used old FAST tooling to design it.

I'm not, FAST 102 made for cathedral ports, trick flow "fast as cast" 220 heads

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