Ask Away! with Jeff Smith: Adding Power to a Ski Boat SBC—EFI or Carburetor?
I’ve got a direct-drive ski boat with a worn out 350 c.i.d. small-block Chevy. I’m thinking about building a new engine with modest goals. It’s a family boat, but I […]
Post Tagged with: "engine tech"
Q&A
Horsepower Wars
Horsepower Wars: LS vs. Coyote Shootout 2, Episode 3
Everyone who enjoys or has participated in the Ford vs. Chevrolet rivalry for the past 108 years can appreciate the implications of the Horsepower Wars folks revisiting an engine-building contest […]
LS Engines
LZ1 6.0L Engine Specs: Performance, Bore & Stroke, Cylinder Heads, Cam Specs & More
Mechanically similar, General Motors’ LS and LS-based Vortec engines wound up on almost every branch of the GM family tree: Chevy, Pontiac, GMC, Cadillac, Buick—heck, even Saab, Hummer, and Isuzu got some […]
LS Engines
LH8 5.3L Engine Upgrade Guide: Expert Advice for LH8 Engine Mods to Maximize Performance
[Editor’s Note: This LH8 engine upgrade guide is part of a series of LS engine upgrade guides assembled by a team of LS experts at Summit Racing that we are sharing at OnAllCylinders. […]
Q&A
Mailbag: Rejuvenating an Old 454 Big Block Chevy
Q: I have a 1973 454 big block Chevy. It has a 8.5:1 compression, stock oval port cylinder heads, a Crane PowerMax camshaft, and Edelbrock Performer intake, and a Holley […]
LT Engines
LT4 6.2L Engine Specs: Performance, Bore & Stroke, Cylinder Heads, Cam Specs & More
This is an engine specification guide for General Motors’ fifth-generation supercharged LT4 engine that launched in 2015. GM has built two different engines designated as the LT4: 1996–1997 LT4 – Gen II, 5.7L, […]
Q&A
Ask Away! with Jeff Smith: Talking HP, Boost & Compression in an E85 427 c.i.d. Engine
I have a question. I am building a 427 cubic inch Dart motor with LS3 heads and a Kenne Bell 4.2L blower. I am looking for maximum horsepower out of […]
LS Engines / Tech Articles
LS Tech: How to Delete Variable Valve Timing (VVT) on an LS Engine
Variable Valve Timing (VVT) is a system that automatically adjusts valve timing. GM used VVT on the following engines within the LS family. (Summit Racing’s Paul Spurlock and Brian Nutter contributed […]
Q&A / Tech
Mailbag: Building a Potent, Pump-Gas Pontiac on a Budget
Q: : I have a 1967 Pontiac GTO with a 400-cubic-inch engine that originally came from a 1968 Grand Prix. The 10.75:1 compression engine is rated at 340 horsepower. The […]
Tech / Tech Articles / Tech Projects
Stock Eliminator LS7: How SAM Tech Got 825 Horses from a Naturally Aspirated, NHRA-Legal LS7
Anyone can slap a supercharger on a stock 505-horse LS7 and pick up an extra 200 horsepower. And thanks to the incredible untapped potential of GM’s factory LS7 cylinder heads, gaining huge […]
