the ls engine debackle

[BCOWANWHEELS]

What alot of folk dont realize about modded ls engines is if you change them in any way without a reprogram it will throw a code. Once you reprogram it you have to return it to that programmer because he,s the only 1 who knows what he did. Its cost adds up real quickly. Yes i,am building a early style lt1 right now for my 72 c10 low rider

[SCOTI]

I'm good w/either one. They are both great in the big picture. I have big-blocks as well.

The conundrum for me is the 'choice'. I currently have 2 406's sitting in my shop. One is an older rebuild/used motor (older as in original short rod/dish piston motor) & the other is a 5.7 rod flat-top Hypereutectic rebuild. The older used motor has some Dart Iron Eagles that helped the dished pistons scenario + an aftermarket cam (unknown specs). The other rebuild has some AFR's sitting on it & currently a flat-tappet hydraulic Lunati. I have supporting parts for the sbc's as everything I have utilizes pre-LS drivetrains.

It's tough to choose spending $$ for LS swap specific stuff when you have sbc stuff already sitting around. I'm pretty sure I'm not the only one w/this dilemma. My current logic is to build what I have on hand & transition toward an LS based set-up on future/planned upgrades.

[57taskforce]

Originally Posted by BCOWANWHEELS

What alot of folk dont realize about modded ls engines is if you change them in any way without a reprogram it will throw a code. Once you reprogram it you have to return it to that programmer because he,s the only 1 who knows what he did. Its cost adds up real quickly. Yes i,am building a early style lt1 right now for my 72 c10 low rider

That’s not entirely true, only major things like deleting cats for headers, tuning for different cams, injectors, forced induction etc. require tuning. As long as the tuner doesn’t lock the tune,(most don’t) any tuner or even your self with the right software, can go in and see what has been changed and update or modify the tune when ever it’s needed. It’s not uncommon for it to take a few data logs to dial a tune in. Also some companies will offer tuning updates for reduced prices or free if the initial tune, and the parts requiring a tune update are purchased from them. It’s a minor price to pay in my opinion for really dialing everything in. It’s a big part of why the ls stuff is a lot more drivable with big cams, stall converters, etc. it’s all in the tune.

[LockDoc]

Originally Posted by BCOWANWHEELS

What alot of folk dont realize about modded ls engines is if you change them in any way without a reprogram it will throw a code. Once you reprogram it you have to return it to that programmer because he,s the only 1 who knows what he did. Its cost adds up real quickly. Yes i,am building a early style lt1 right now for my 72 c10 low rider

That is exactly why I bought the HP Tuners kit and learned how to tune mine myself. I can now change anything I want at any time.

LockDoc