Carbureted LSX Forum Carburetors | Carbed Intakes | Carb Tuning Tips for LSX Enthusiasts

first LS built

Thread Tools
 
Search this Thread
 
Old Dec 1, 2014 | 09:30 PM
  #1  
gmoutdoorsman's Avatar
Thread Starter
Staging Lane
 
Joined: Jan 2014
Posts: 55
Likes: 0
Default first LS built

My first build: LM7 block bored to 3.905, slightly decked with flat tops. For budget reasons im carbing it. Im looking for advice on finishing the top end. I plan on using LS7 lifters with a ported LS6 oil pump. I'd like to use stock 243's and a 228R cam,performer rpm intake and a 750 holley. Would this setup yield decent results? And I'd like to drive it as much as possible. Just looking for a fun street car with decent power. Any imput would be greatly appreciated.
Reply
Old Dec 2, 2014 | 10:37 AM
  #2  
ZONES89RS's Avatar
In-Zane Moderator
15 Year Member
iTrader: (25)
 
Joined: Jan 2007
Posts: 11,941
Likes: 33
From: Conroe, Texas
Default

If you are talking about the 228 grind that is for EFI, you can make a 450 HP combo but a custom grind or off shelf grind for a carb will make the combination work much better. Martin at tick or Geoff at EPS can set you up with a cam dialed in for your combo and needs. But it will surely run very well.
Reply
Old Dec 2, 2014 | 02:41 PM
  #3  
Doug G's Avatar
10 Second Club
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2010
Posts: 4,465
Likes: 192
From: Harford Co. Maryland
Default

Should run good...but agree with a 110LSA cam.
Reply
Old Dec 4, 2014 | 06:42 PM
  #4  
speedtigger's Avatar
Old School Heavy
15 Year Member
Photogenic
Liked
Loved
iTrader: (16)
 
Joined: May 2010
Posts: 8,835
Likes: 84
From: Florida
Default

Originally Posted by gmoutdoorsman
My first build: LM7 block bored to 3.905, slightly decked with flat tops. For budget reasons im carbing it. Im looking for advice on finishing the top end. I plan on using LS7 lifters with a ported LS6 oil pump. I'd like to use stock 243's and a 228R cam,performer rpm intake and a 750 holley. Would this setup yield decent results? And I'd like to drive it as much as possible. Just looking for a fun street car with decent power. Any imput would be greatly appreciated.
That combo will work great. The only thing I would want to know if the intake centerline of that cam. You may want to advance it a few degrees. What are you doing for a transmission? And, what is it in?
Reply




All times are GMT -5. The time now is 07:14 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE