Menu

Shop

Garage

Cart

Account

Products to Compare (max of 3)
X
Compare These Parts

Building up an LT1

9/16/2016

In this Tech Tip, John discusses LT1 rotating assembly options for a customer looking to build a solid autoX, drag, and occasional strip powerplant for his Firebird.

LT1, Stroker Style

“Hello, I am looking into stroker (3.75) rotating assemblies for my 1995 Pontiac Firebird Lt1. I Have a set of AFR 210 65cc chambered cylinder heads along with a 4 bolt main block that has already been bored .30 over. I would like forged crankshaft, rods and pistons as the car may see nitrous in the future. It is a street car that I take to road courses, auto-x and the drag strip I would like to burn 91 octane fuel so I am figuring keeping the static compression under 12:1, closer to 11.7 would be great. I do not know off hand if my block is at 0 deck height or not as I bought this engine used. I have a set of Fel-pro .039 compressed thickness head gaskets. I would like to avoid milling my heads if at all possible.     My main questions are:     Do you offer different bore size (.040? .045?) pistons than what are listed for rotating assemblies?    I would prefer H-beam rods, is this an option?    Brand preference is a non- issue as I am un-biased and trusting in your advice. I would like to keep the price under $1800 if that is possible.”

  • Jared P.

Hi Jared, You inquired about a rotating assembly for your Firebird. If your Chevy LT1 motor is a 2 piece rear main we offer a stroker style 383 Rotating Assembly kit, P/N 9151232 with the forged components of crank, rods ( I beam), and pistons available in .040 size.  It comes with the correct bearings for the 350 block in standard for mains and 5.7 rods.  Compression ratio is 9.6 with 64cc heads which makes it streetable.  If you have an LT1 with a one piece rear main block and want higher compression just let us know and we can put something together.  Feel free to visit us on the web at www.speedwaymotors.com or call 1-800-979-0122 with questions or to place an order.

  • John W.

Products Featured in this Article

Related Articles

Pick The Right Camshaft For Your Project
by Jason Lubken - Posted in Tech
7/11/2016
Picking a proper camshaft for your project can rapidly deteriorate into chaos. So many possibilities. Want a little advice? Click here!
Chevy 350 and Ford 302 Performance Upgrades
by Speedway Tech Team - Posted in Tech
7/11/2016
Learn how to upgrade your stock Chevy 350 or Ford 302 for peak performance with bent exhaust systems and more. Don't settle for stock in your crate engine.
Engine Building - Valvetrain Tips
by Jason Lubken - Posted in Tech
7/6/2016
Once you're ready to start selecting valve train components, we have some useful tips and tools that should boost your performance. We discuss proper valve-springs, pushrod length, and rocker arm ratios.
Water Pump Options for the Chevy Crate Engine
by John Wulbern - Posted in Tech
3/16/2017
In this Tech Tip, a customer asked for some recommendations on water pumps for his 1934 Chevy Coupe build.
Ford 302 and Chevy 350 Timing Pointers - Step by Step Instructions
by Speedway Tech Team - Posted in Tech
10/13/2016
Learn how to set initial timing on the Chevy 350 SBC and the Ford 302. Our guide covers step by step instructions so you can set timing on your engine.
Keep Your Sprint Car Engine Running at Peak Performance
by Dalton Johnson - Posted in Tech
4/23/2018
One of the most important parts of your racing operation is the engine. This article gives a detailed overview on how to maintain your engine to get the most out of it for as long as possible. Also learn some tips to prolong the life of your engine.
Choosing the Right Headers
by Speedway Tech Team - Posted in Tech
6/16/2021
Which size of headers should I use? Short or long tube headers? Etc. Learn how to answer these exhaust questions and choose the right header with our expert guide.
Small Block Chevy in a 1953 Chevy 3600
by John Wulbern - Posted in Tech
8/7/2017
In this Tech Tip, John advises a customer on the parts needed to slip a small block Chevy engine in his 1953 Chevy 3600.
Heavy Steering Solutions
by John Wulbern - Posted in Tech
9/15/2016
In this Tech Tip, John helps a customer troubleshoot his heavy steering in his project.
SBC Valve Lash Adjustment on Hydraulic Lifters | 8 Steps
by Jason Lubken - Posted in Tech
6/10/2021
To get the longest life and most performance out of your engine, it's important to have the valve lash set correctly. Here we show you how to set valve lash on a Small Block Chevy using a hydraulic lift camshaft in just eight steps.
Error
X
Note
X
Ok