5th Aug 2015
There are two ways to determine the year your 604 was manufactured. The first way is to look at the numbers on the front of the block. These numbers are located on the Passenger side front, on a squar…
Published by Crate Insider
28th May 2015
There's no magic number of races run before a rebuild is needed. There's no sense in wasting money on doing it too soon, but you don't want to wait too long and risk a failure either. To find the ri…
Published by Crate Insider
21st May 2015
This tech tip was provided to us by Steve Hendren at Hendren Racing Engines:"Did your new 602 or 604 engine come with the balancer shown in the photograph? Have you changed your old style balancer out…
Published by Crate Insider
20th Jan 2015
In this Tech Tip, we show the proper way to adjust valves on a GM604. The tool used is called a Valve Lash Adjusting Tool by LSM Racing Products and can be found in our online store here: Valve Lash A…
Published by Crate Insider
9th Jan 2015
With the Super Bowl coming up this weekend, we couldn't think of a better time to talk about the Super Bowls from Willy's Carbs and Dyno. This innovative technology transforms the fuel system in your…
Published by Crate Insider
3rd Dec 2014
With winter and cold temperatures arriving, we decided to reach out to our experts to get advice on best practices for protecting your racing equipment so that it is ready when the season starts again…
Published by Crate Insider
20th Nov 2014
Q: What is the safe water temperature range for a 604?A: Ideally you want to see water temps between 180-210 degrees. But it's not uncommon to see temps between 220-230 degrees during certain times of…
Published by Crate Insider
12th Nov 2014
Jones Racing Products, Inc. has released a new lightweight serpentine water pump drive which is designed to optimize cooling and efficiency. They have a variety of ratios available to accommodate all…
Published by Crate Insider
19th Sep 2014
Ask the racer parked next to you and he may tell you 9 to 12 races. Ask an engine builder and he may tell you 2 to 3 races. With variations like that, it can be difficult to find the best solution f…
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28th Aug 2014
True or False: The purpose of a pre-filters is to act as a dust screen.Answer: False. Pre-filters are designed to keep large debris, such as mud clots out of your air filter. The openings on a pre-fil…
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15th Aug 2014
One of the most frequently asked questions we hear is, "what kind of spark plugs do you recommend for a 602, 603 or 604?" Our engine builder experts agree and have told us:"The plugs we've had the mo…
Published by Crate Insider
2nd Jul 2014
NecksGen's new REV is an awesome piece of engineering. It is strong, built for comfort, incredibly lightweight (less than 2 pounds), and made in America. The NecksGen REV comes in 4 sizes: Small (2 i…
Published by Crate Insider
