Anybody know if anybody here has already dunked a 2001-2006 Chevy 496 truck 8.1 engine in a Shark?

If so...please post a link...etc!

THANKS!

 

I know some here have the 8.2L 502 engine.

If gas prices weren't an issue.....

 

 

I hear ya...but the 8.1 is a whole different animal.

It runs off the same system as a LS2 - 8 coil packs, 8 injectors...front mounted LS style drive by wire throttle body - low mounted a/c ...etc.

It has both LS and standard chevy motor mounts cast to the block.

THe HO makes 425 hp and gobs of torque...the basic model makes 330 hp.

These came in 3500 trucks, RVs, Boats...etc

Cam/roller rockers...aluminum heads are all available.

The bellhousing is the same as a standard Chevy.

I figure this mated to a Richmond six...and a decent rear gear will actually do very well on gas - and not require a heavy foot to get a thrill off idle. Add heads/cam...and push to 600 hp - and through the gas out the window!

Seriously weighing this out for my next 69 Vette...but don't want to totally reinvent the wheel if somebody has been there...done it.

 

We are making progress. I had to make a minor notch to the front X member to clear the longer front balancer pulley - I have the serp pulley on the way here...and the wire harness is in the shop waiting to be connected..

Still waiting on exhaust...and a few things.

here is something cool I came across:

Found some cool info from a truck site that did a 8.1 swap:

Unless you work at the Tonawanda, New York, assembly plant, this is probably the first time you've ever seen the new Vortec 8.1L (that's 496 very nasty cubic inches) big-block on an engine hoist. This one came to us directly from Chevrolet, but it's rumored a GEN VI crate engine from GM Performance Parts is in the works. In the factory HD truck trim these mills produce 340 hp and 455 lb-ft, but in our nonemissions marine trim (no smog pump, no EGR, a set of headers, and a trick new EFI controller) it puts out an estimated 420 hp and 505 lb-ft of torque.

And...on the flywheel/trans:

More good news. The 8.1L is internally balanced and will accept the old 14-inch, 168-tooth, neutral balance flexplate from a 396 or 427. Just don't try to run an externally balanced (weighted) flexplate from a 454 as it will damage the 8.1L's reciprocating assembly.

And...on fitting it in an older or even an LS application:


It gets even better. Even though GM has adopted a new engine-mount location on the new Silverado chassis, the old GM engine-mount pad is still cast into the 8.1L blocks. Want to bolt an 8.1L in where a 454 came out? No problem

Source: http://www.4wheeloffroad.com/brandpa...t_1/index.html

 

Cool, thanks for the info. Post some photos of what you're doing, man. We want to seeee.

 

Here we are with the test fit going on for the front accessories.

I'm waiting to put the lower pulley back on after I pull the motor back out and install the modified pan.

I have two current issues.

1. Looking for the right adpater fitting to come out of the power steering pump and connect to a -8 female high pressure line. The stock pump has a cool Aeroquip factory quick disconnect, but it hits the frame. I pulled it and found it appears to be a metric - about 16mm wide male fitting needed that is not a taper fit - has an o-ring at the top. That needs to be mated to a -8AN male tip to do the trick. Have a plug from an LS engine and steel fitting that I might be able to weld together...

2. VSS from the Ricmond 6 (like an old Muncie). The stock LS has a 40 tooth reluctor wheel and generates about 128K pulse a mile. The highest aftermarket off the shelf sender I can find is 8K - so about 40K a mile. Checking with the programmer now to see if he can manipulate the tables, or if I have to find a way to put a new reluctor in the trans.

 

V-E-R-Y !!!

 

The 8.1 is a truck engine. It shares no components with the mkIV bigblock so you need to love this engine for what it is and have no hopes or aspirations for anything more.

 

Ah...DANGIT! And here I thought I was getting the benefit of at least 340 hp, and 450 lbs of torque on the low side and 400 hp and 500 ft lbs on the upside...with full sequential injection, dbw with built in cruise, roller cam...killer one piece front and rear main...high rail valve covers....availability of awesome aluminum heads from Raylar...capacity to 700 hp with head/cam and tuning mods from Raylar. Infinate high quality precision tuning ability through the LSx computer system...and TONS of aftermarket Gen III and IV LS electronic benefits....ALL packaged in a huge on large piece of big fat cast iron.

By the way... I'm not sure...really, a bit confused, but I thought (correct me if I'm wrong) the mighty CORVETTE 350 and 454 are also....(NO DON'T PUT THIS IN PRINT... TRUCK MOTORS!!!!!!!!!!!!. Yes...it is true. You can actually open the hood on a old truck and find the same basic block and heads! The last time I remember, they interchange! Really.....Oh...the HUMANITY OF IT ALL. Then...I found out that the 6.0 found in the late model trucks (other than the metal it is made from) is the SAME DANG THING AS A C6 6.0! And...many high end mods are prefered on the cast iron block. Oh dear...it is a TRUCK MOTOR...Somebody slap some sense into me QUICK!



DANG...I guess I just got a piece of crap truck on my hands. I had high aspirations...but now they are all dash! Curses!

Yep...just a worthless truck motor good for nothing but turning into Chinese recycle metal.

DANG IT!

DOUBLE DANG IT!!!!!!!!!!!



C'mon boys...FLAME ON! See you at the finish line!

 

No flames from here. It looks good. Keep us updated on the progress. What type of exhaust system will it accept ? Old school big block stuff ?

 

All of the LS motors are metric, and I read something today that suprised me, although it probably shouldn't have. Some GM engines are now being built in China. Can't help you with the VSS. I'm using an engine and trans from the same model year so it should be plug-n-play. Maybe someone on ls1tech could help you out.



Rick B.

 

Sounds great - didn't pay the Corvette/GTO/TBSS "LS tax" either, did you? You might check the "sticky" at the top of the Tech forum about swapping LS motors (my original post almost a couple of years ago). Someone there may have run into the 8.1 somewhere along the line. Also check out the LStech forum and some of the companies/vendors that are doing a lot of LS stuff (Livernois, Mast, MTI Racing, etc.). They may have pointers or know others that can help out.

 

( in Mr Spock voice )

Sarcasm mode activated captain


BTW....pretty big differences in the Vette 350 and 454 and the same motor in a truck depending on year.

Cool project though...should pull like a raped ape

 

Hmmmm.... As I recall, there was another Chevy truck engine that made some 'waves' in the 1950's and 60's. It was the 348 ci engine, which then became the 409 and later the first 427. How about them apples, Jerry72??? I think Chevy truck engines are O.K.

 

thats funny! dont let them get to ya. some people are just scared of change and things that are not the norm. i get second guessed about all my modding on my project all the time. even the proven stuff gets questioned sometimes.

this motor has been used in a few performace boats with some raylar goodies and has had some very nice results. i like where you are going with this. however, for a lot more money and head ache you could get 900+ hp out of a tt lsx motor.

 

I am running the exact engine 496 HO in our Supra Ski boat. It puts the ol POS 454 to shame. yes it is a metric motor but all of the motor mounts, bell housing mounts are the same. This motor has a much better usable power than either the 454 or 502. I am glad you put in a modern engine and forget what the Vette Praisers say. you will be able to drive it and have fun, while they will be praising and wishing it would run good. Allan

 

Did you try www.jagsthatrun.com

They may have something you can use. They seem to deal mainly with GM trans, but maybe you can adapt something.

 

69, I'm with ya all the way on this beast! I know for certain this engine will pull some major hp's right out of your garage. Everyone needs to take a look at this project as this guy knows what he's doing. This is NOT the first trick pony he's built, so stay tuned...

And as he said, see ya at the finish line!

 

It looks like I'll have to fess up - my 350 is - you guessed it - a truck motor. It was purchased right out of the truck and rebuilt, with a schnieder racing roller cam, all OEM roller valvetrain, aluminum heads, SCAT rotating assembly, speed-pro pistons and plasma moly rings....

I love it, its a truck motor and makes about 100hp more than the original L-82 "Corvette" motor.