Hart_Rod

iTrader: (3)

I need some help picking an LS engine engine for my TVS1900 Magancharger. I have a 68 C10 with a 383 stroker and a Vortech V2 supercharger (turbo 350 tranny). The engine dyno's 631TQ/622 HP at the flywheel.

Build link:
http://67-72chevytrucks.com/vboard/s...d.php?t=358692

Motor link:
http://67-72chevytrucks.com/vboard/s...d.php?t=358692


It is really fun to drive, but I'm a fuel injection guy at heart and I want to upgrade to an overdrive tranny (4.11 gears). Soooooo, I'm trying to decide between these two engine/tranny combos to put in my truck:

Engine #1: 2009 Pontiac G8 6.0 engine (6L80E) with 16K miles, $5800.

Engine #2: 2011 Chevy 3500 6.0 truck engine (6L90E) (LY6/L99) with 700 miles, $6300.

EDIT: Engine #3: 2013 6.2 from Camaro SS (also with a 6L90E tranny) 135 miles $$$$$ .....

Both motors come complete with 6 speed autos and all accessories (price includes shipping). I have a TVS1900 Magnacharger that I will be putting on top of what ever engine I end up with.

Before I forspend that much money I would love to hear everyones opinions, pro's, con's to each engine. Fire away and thanks in advance!!

uscg02ws6

Seems like a lot of money for a used motor ,y not buy a built motor and just keep the th350. I think aes 390 with 317 heads and a custom cam would prob be close to the $5k and give lots of room for growth. A built 5.3 would be even cheaper and do great with the tvs1900

Hart_Rod

iTrader: (3)

I really don't have time to build a motor and I don't know of any good shops in my area. Also, I want to upgrade to an overdrive transmission and it's hard to beat the reliability and dependability of the new stuff. The TVS won't fit on a 5.3 because it set up for square port heads (I think 317s are cathedral ports). Thanks for the reply!

LT1RAY

iTrader: (21)

Engine #1 is a 6.2 (LS3).

If you already have the TVS1900 go with engine #1, it's cheaper. You can also get the square port heads for the small bore motors. You could also find a LQ4 pullout with a 4l80e, swap a set of L92 heads on it and save money.

jridenour31

Only way #1 is a 6.2 is if it's out of a gxp. Gt's are 6.0.

427zm

iTrader: (9)

+1 here. The LS3 is the engine you want if possible. I will bet if you do go w/ the LS3, you will probably want a bigger blower. The TVS1900 was designed for smaller displacement motors, the TVA 2300 was designed for the LS3/7. The Gen IV motors move a ton of air and will probably max out the 1900. It will still be a great combo!

Hart_Rod

iTrader: (3)

It's a 6.0 aluminum block. I prefer to install the s/c and not do a head change.

You are correct, 6.0 aluminum block!

Will 1900 make more power in the L96 (truck) or the L76 (G8)? Is the only benefit of the L76 the aluminum block?

jridenour31

Absolutely go with the g8 motor. It's cheaper and will make all the power the 1900 is capable of. This isn't a turbo motor. You won't make more power on a smaller motor. The 1900 will be fine.

Hart_Rod

iTrader: (3)

So you think the G8 would be better than the 2500 truck motor even though it has the AFM?

LT1RAY

iTrader: (21)

The LY6 still has vvt. Do you plan on keeping the afm when the truck is tuned? Or do you plan on doing a cam swap?

Hart_Rod

iTrader: (3)

Correct, it has VVT but not DOD/AFM. I shouldn't have to do a cam swap because of the VVT as longer as my Tuner knows what he is doing.....

Hart_Rod

iTrader: (3)

Ok, well after a lot of thought and questions, I'm going with the 6.2/6L80E out of the Camaro SS. I think this will be the best bang for the buck and allow for some good upgrades in the future. I plan on deleteing the AFM and the VVT, anyone have an idea on the the cost of that? Also, I would like to change the transmission output shaft to allow for a regular driveshaft yoke, anyone have a cost on this upgrade? Thanks in advance!

old motor:

http://s852.beta.photobucket.com/use...01658531563356

94 slow

How about an iron 6L with Lsa heads and. 4L60e Trans

Hart_Rod

iTrader: (3)

Ok, I picked up a 2013 L99/6L80E out of a Camaro SS with only 135 miles! (pics to follow) I have a couple of questions, where should I purchase the AFM/VVT delete from as well as the cam? How much is the factory cam and lifers worth? How much is the complete intake worth with all the injectors? Once again, only 135 miles, . Thanks in advance.