LS3 418 Stroker

Reply Subscribe

Thread Tools

Search this Thread

Sep 14, 2011 | 06:24 PM

98slols1

Thread Starter

Teching In

Joined: Jul 2011

Posts: 24

Likes: 0

LS3 418 Stroker

Hey got my 418 LS3 getting shipped to me in a couple days just trying to tie up the loose ends before it goes in. From what iv read 42 lb injectors are the size i need is that correct? Its going in a 98 F body. Let me know what you guys think and if you know any websites that have what i need. Thanks

Sep 14, 2011 | 09:49 PM

litle88

12 Second Club

iTrader: (20)

Joined: Jan 2007

Posts: 2,561

Likes: 4

From: Burbank, Illinois

It depends on how much HP your going to be making.

With the mods in my stroker I'll be needing a 52lb injector.

Sep 14, 2011 | 10:18 PM

82cetuner

10 Second Club

iTrader: (9)

Joined: Sep 2009

Posts: 1,368

Likes: 7

From: Denham Springs, LA

I would go with 50 or 52 injectors you can have the stock 42 ls3 ones rebuilt to 52, at 42psi with about 520rwhp you will be running about about 100% duty rate

Sep 14, 2011 | 10:31 PM

98slols1

Thread Starter

Teching In

Joined: Jul 2011

Posts: 24

Likes: 0

Its got the fast 102 intake and tb, monster stage 2 clutch, 9 in rear, 1 7/8 long tubes 237cc PRC ported heads, LS7S Camshaft: 242/250 .614'/.614' (with 1.7:1 Rocker Ratio), 114 LSA..4:10 gears want to get as close to 550hp as i can....so you think 52 lb injectors should do the trick?

Sep 15, 2011 | 01:08 AM

JoePilot

Registered User

Joined: Sep 2011

Posts: 6

Likes: 0

From what I've been told, stock LS3 injectors max out at 550rwhp. Based on your motor and mods, seems to me 52# injectors would be best. Should be a beast.