DA TRILL1

What’s going on ls1 tech, I have a question. So I’m having trouble deciding what engine to go with for my g body. I’ve wired my search down to a
Ls3 427stoker, or Ls7 427. I’m trying to reach around 600-800 hp but I’ll be happy with 700 because the car is going to be a daily driver. But I just wanted to know what the right fit would be for my build.

KW Baraka

iTrader: (7)

Between the two engines you list, you will more likely hit your power goals with the LS7; particularly if those power goals are to the wheels.

At that power level, it will definitely be on the rowdy side for a daily driver. But if that's to your liking....go for it!

Best of luck whatever you do!

KW

DA TRILL1

Which one of those 2 is more reliable though? From what I'm hearing and researching everyone saying the ls3 is more reliable. But both of those 2 are good engines though.

LS1 TJ

I would have a few concerns on the 427 cube LS3 in regards with how far the piston is pulled down into the block. If I was building a 427 motor I would do a LS2 block with Daron sleeves. I did a LS2 sleeved by RED (Race Engine Development) in CA. The Darton sleeves are much stronger than stock GM sleeves. Then did a Manely stroker assembly. Stock LS3 heads with upgraded springs and push rods. With a mid range cam it did 500 rwhp and was a piece of cake to tune. Not huge numbers but it ran great.

Biebs

LS3 6.2 with nitrous or a blower. Keep it simple silly.

DA TRILL1

What about a lsx with a blower an spray ?

G Atsma

Overkill for the power level you want.

AwesomeAuto

Guys have done 700 wheel on a cam-only LS3 with a ported LSA blower.
Very simple combo.

Michael Yount

iTrader: (1)

I think the OP might've typo'd his username -- DA TROLL.....

G Atsma

Maybe.... but hard to say at this point. The fact that he posted beyond the first post is a bit encouraging.... lol

DA TRILL1

Nahh no typo mane 😂 TRILL slang southern meaning true and real. But just looking for advice on the project.

Michael Yount

iTrader: (1)

Your power goals are not too tuff to attain...boost via supercharger or turbo...build bottom end (pistons, rods, fasteners) to stand the abuse - streetability can be achieved. 600-800 naturally aspirated is gonna require rpm - bottom end, valve train, int/exh/head flow required to keep up. And it won't be very streetable at least by my definition of streetable.

ryeguy2006a

iTrader: (27)

I was thinking the same thing about being streetable. Not only will the LSA or Turbo make more streetable power, but will likely cost you less in the end. Building a stroker LS3 or LS7 is not cheap. With forced induction you can pretty much just keep adding boost until you hit the level you want haha.

Michael Yount

iTrader: (1)

Within reason....LOL!