QUESTIONS ASKED ON THE SHOW Steve, I have a pic of a white late model number 29 from 1991 Santa Rosa Speedway. Is that you? How long is the shelf life of e85 in a sealed drum? What’s the average price to rebuild a 602 these days? On the 604 engines there's two different part numbers for intake, is there a difference in them? Could you get tossed by tech for running a new part number piston in an “older” 604? What plugs and wires are good for 602? What’s your recommendation on rpm range on 604? W...
May 02, 2023•1 hr 5 min•Ep. 153
QUESTIONS ASKED ON THE SHOW Steve do y'all run a fuel pressure gage in the car? Or near the motor? What’s the best 4hole carb spacer for 604? What’s the best carb spacer for 602 running E85? Whats your opinion of 10-30 Driven oil Steve? Whatever happened to the Joe Gibbs oil? Good or bad to run 15w40 oil in a 602? Steve if you have any advice I think I might look into tire pyrometer, do you use one? Is there any validity to the Kevco crank case vent system on a 602? Whats your opinion of 10-30 D...
Apr 25, 2023•58 min•Ep. 152
QUESTIONS ASKED ON THE SHOW Is walker air filters really better then all the rest? What does it mean when driver says his tires sealed up? When using pump E85 and testing it to make sure it is 85, do you recommend the KLOTZ UpFlow Fuel Lube? I changed my oil in my 602, Schafer 15/40 , had 3 races on the old oil and all winter storage. My concerns are the oil was brown and not what I remember from the past oil changes. Just wondering what you think? What is the optimal oil pressure on a 602. 10w3...
Apr 18, 2023•46 min
QUESTIONS ASKED ON THE SHOW What are the recommended spark plugs for GM602, and GM604? Recommended gap on spark plugs? Recommended carb spacer for GM602? Recommended carb spacer for GM604? When you tune on the dyno, do you believe in the sniffer for tuning or would you rather still read plugs for timing and fuel? Each week, Kate Dillon from Crate Insider and Steve Hendren from Hendren Racing Engines go live on the Crate Insider Facebook page and Crate Insider YouTube Channel to chat about world ...
Apr 11, 2023•31 min•Ep. 150
QUESTIONS ASKED ON THE SHOW What’s the cost to freshen a 604 now ? What hard parts get changed when freshen for 3300? What is being learned now that engines are dynoed with an O2 sensor on each header tube? I am curious what you guys consider to be most efficient alternator for 602 dirt application? Any guidance is very much appreciated. Thanks in advance! Any particular amperage? I currently have 50 amp mini alternator by power master in mind. What's the ave hp gain with the Jones or the race f...
Apr 04, 2023•37 min•Ep. 149
QUESTIONS ASKED ON THE SHOW Any dyno testing with conversions to 1.6 ratio rockers? 1/4ish mile paved ovals mostly is our tracks. And roller rockers are not allowed either. Any thoughts//advice? What fuel pressures do you recommend? Is there any hp gain going from 12volt to 16 volt on msd on a 604? I know you don't like the kevco evac deal, but I run an asphalt deal so the dirt isn't much of an issue. They say to run the tube behind the muffler. Does that include the anti reversion muffler? Do y...
Mar 28, 2023•1 hr•Ep. 148
QUESTIONS ASKED ON THE SHOW Best spark plugs? Each week, Kate Dillon from Crate Insider and Steve Hendren from Hendren Racing Engines go live on the Crate Insider Facebook page and Crate Insider YouTube Channel to chat about world events, random things, and to answer tech questions. To watch this podcast on Crate Insider's YouTube channel , click here ....
Mar 21, 2023•35 min•Ep. 147
QUESTIONS ASKED ON THE SHOW Spark Plug Indexing is it worth it? Do you recommend low drag bearings on all 4 wheels or just the front? On the gen 2 bert transmissions is the Crate guys getting them ballspline or slip yoke? On a 602, is there an advantage to using a lightweight flexplate? What are your thoughts on lightweight balancers on a 602. Is it a bolt on or part of the engine? And, is there an advantage to a lightweight balancer? Were is the best location to install Coolant temp Sensor in a...
Mar 14, 2023•53 min•Ep. 146
QUESTIONS ASKED ON THE SHOW what is your opinion on using 87 octane non ethanol fuel in a 602 crate motor? Also what octane booster I could use it up to 91 or 93? what are your thoughts on plug indexing? 602 crate Steve not asking you to reveal your secrets but what is your method of preparing and cleaning your tires? How many races should you get out of oil before changing? What is the best oil to run in a 602? Explain Germaine test? Daytona1 15w40 tell me your opinion an why or whynot to use i...
Mar 07, 2023•1 hr 7 min
QUESTIONS ASKED ON THE SHOW How important is shock rebound on the left front when running a chain limiter? How much is reliability affected on a 604 by running 6800 RPM vs. say 6600 or 6700? Do we get any extra dyno time if we bring a case of beer? Each week, Kate Dillon from Crate Insider and Steve Hendren from Hendren Racing Engines go live on the Crate Insider Facebook page and Crate Insider YouTube Channel to chat about world events, random things, and to answer tech questions. To watch the ...
Feb 21, 2023•23 min•Ep. 144
QUESTIONS ASKED ON THE SHOW Do anti reversion muffler get rid of the need for an X pipe and how do you feel about running them in a class that uses exhaust manifolds? Thermostat or restrictor? I bought a set of 604 valve springs from you is one for the exhaust and another for the intake. Are they all the same? There is a mark at the top of eight of them and a mark at the bottom of eight of them? Have you ever tested Brisk spark plugs? Drop into the comments your 2023 life bingo ideas! Each week,...
Feb 14, 2023•31 min•Ep. 143
QUESTIONS ASKED ON THE SHOW Can a guy get away with running a 1.6 rocker arm or a crate engine without pulling out the rocker stud? 602 Rush engine vs. 602 Dirtcar sealed engine. Opinions good or bad? Each week, Kate Dillon from Crate Insider and Steve Hendren from Hendren Racing Engines go live on the Crate Insider Facebook page and Crate Insider YouTube Channel to chat about world events, random things, and to answer tech questions. To watch the podcast on Crate Insider's YouTube channel , cli...
Feb 07, 2023•28 min•Ep. 142
QUESTIONS ASKED ON THE SHOW Is the profab mufflers that come with the headers is it the same ones as what y'all sale? Are the anti-reversion mufflers worth the investment? Whats your thoughts on Super Bowl carbs? would change jets if you're racing at different elevations? I have a Asphalt 604 late model. What do you think of a step cross over header. 1 1/2-1 5/8-1 3/4 with 3 1/2 collector? Best of both world's? TQ and HP? How can you get more gas mileage? Each week, Kate Dillon from Crate Inside...
Jan 31, 2023•58 min•Ep. 141
QUESTIONS ASKED ON THE SHOW Do you have the newer 604 springs in stock Kate? Matched? What’s the best fuel filter for 602 on E85? Have you seen or ran the newer Holley 650's I believe they are a different center section? How long to freshen 604? What is the best water wetter to use, that really works? Do you have any dyno experience with a stepped wall carb spacer on a 602? How much Horsepower/torque loss do you see from not changing your valve spring every 5-10 nights and instead run them 15-20...
Jan 24, 2023•48 min•Ep. 140
QUESTIONS ASKED ON THE SHOW Do you need to re-shim your valve springs every time you change them? You do recommend checking matched springs after every race right? Any update on the new style 604 valve springs? Has there been enough testing to compare to the "Blue" springs as far as longevity? I run a thermostat with my 602 it has helped me tremendously on fuel consumption to get the car up to temp but would you recommend keeping it and running a dual bypass neck for security measures with it or...
Jan 17, 2023•1 hr 1 min•Ep. 139
QUESTIONS ASKED ON THE SHOW what your price on a dynoed 604? Do you recommend running a return on the fuel line? Any difference between the wilds headers and the pro fab headers on a 604? On a 602/604 is running a 1” carburetor spacer recommend / beneficial or no spacer at all? Do you recommend a distributor on a 602 dirt late model? If so front or rear mounted? What price on a chassis dyno 602 mod? Could you explain the anti-reversion mufflers a little bit, and if you think they would be benefi...
Jan 10, 2023•39 min•Ep. 138
The CARS Racing Show is this Friday and Saturday January 6-7! Come out and see all the new innovations for 2023! CARS Racing Show in Hickory, NC this January 6-7th QUESTIONS ASKED ON THE SHOW Valve springs are not rated on seat pressure, but they are matched correct? Intake springs are different then the exhaust on a 602? Is the video about adjusting valve springs on a 604 on the Crate Insider website still the best way to adjust them after a valve spring change? With all the braided line manufa...
Jan 03, 2023•56 min•Ep. 137
QUESTIONS ASKED ON THE SHOW Steve have you ever messed with the Ford equivalent crate engine of the 602? I wonder why organizations don't allow it to run? Do plug wires make a difference on a 604? If so What’s the top three brands? Honorable Mentions: CARS Racing Show in Hickory, NC this January 6-7th ART'S Radiator Products Each week, Kate Dillon from Crate Insider and Steve Hendren from Hendren Racing Engines go live on the Crate Insider Facebook page and Crate Insider YouTube Channel to chat ...
Dec 20, 2022•39 min
QUESTIONS ASKED ON THE SHOW If you store your car in heated area, how often should you start 602 604, and for how long and what rpm in off-season? What's your opinion on whether or not to run an alternator? Best oxygenated fuel “gas” for the 602? I have a really good spare fuel pump that makes 8.5 fuel psi. I want about 7. How can I tweet this pump or do I scrap it? Anything new for dirt racing at PRI? Honorable Mentions: CARS Racing Show in Hickory, NC this January 6-7th Each week, Kate Dillon ...
Dec 13, 2022•42 min•Ep. 135
QUESTIONS ASKED ON THE SHOW Have you heard of using 1.3 rockers for engine break in? Is that just parts catalog companies trying to sell stuff you don't need? Do you feel that there is widespread use of Shannon Davis products or tec west? What was the Cars date? I understand the reason for higher rated caps, but would you still be comfortable with a 28-30 psi cap? Each week, Kate Dillon from Crate Insider and Steve Hendren from Hendren Racing Engines go live on the Crate Insider Facebook page an...
Dec 06, 2022•56 min•Ep. 134
QUESTIONS ASKED ON THE SHOW What brand of chassis does your son race? What sanctioning rules do you and your son run under most of the time? 6 inch rods or 5.7 for IMCA open 360 motor? What is your opinion of the vortec heads that speedway motors sells? Will AvGas work in my furnace? What’s your preference on rush fuels the e-85 or the oxygenated rush fuel And does the e-85 run cooler? Kate i am looking for a mechanical fuel pumps. any recommendations? Can I back cut the intake valves on 602? Ho...
Nov 29, 2022•46 min•Ep. 133
QUESTIONS ASKED ON THE SHOW We run Schaefer supreme 7000 synthetic plus 15/40 would you recommend this oil or an other viscosity? Winterized and pulled my motor. Should i turn over by hand throughout winter. Spray anything in intake/header ports or spark plug holes at same time? What plugs do you recommend in a 602 running CHP? And what Gap? What size pulleys would you run on a spec motor for the water pump? Stock type clutch and flywheel for an asphalt street stock? As light as the rules allow ...
Nov 22, 2022•55 min•Ep. 132
QUESTIONS ASKED ON THE SHOW What is your opinion on a spring smasher, we have always done without...are they a good addition to your shock program, or can we do with out? What is the earls thermostat for the 602 and is it worth it? What’s the ballpark cost of a 525 rebuild and how does parts availability look like for them? What is the maximum rpms for your 602? How much hp will the quick change rob from the street stock 602? What is a preferred header- profab or beayeu? And any advantage from m...
Nov 08, 2022•1 hr 2 min•Ep. 131
QUESTIONS ASKED ON THE SHOW On a stock car, is it normal to have your rear end totally square with your front tires, or is there any cornering benefit to shortening the wheelbase on the driver's side just a touch? Do you think race fuel prices will ever come back down or is the new norm $14/gallon for 110? Anti reversion muffler worth it for the 602? Best Carburetor? Best Carb for a 525? Welcome to the Racing Insider’s Podcast! Each week, Kate Dillon from Crate Insider and Steve Hendren from Hen...
Oct 18, 2022•41 min•Ep. 130
QUESTIONS ASKED ON THE SHOW My new 602 crate with about 20 races has just failed the leak down. Cylinder 3 are at 55% and 4 is 42% leak down. We ran the motor up to temp. As a team we have decided to run it more. We have done a quality winter prep for now. Would you recommend something different? Kate and Steve can you explain the 6 valve benefits of the pro cam fuel pump? Whats the difference between a wix 51060r vs 51061r? What's the difference between x85 and e85? On a 602 rebuild, do you use...
Oct 04, 2022•1 hr 3 min•Ep. 129
QUESTIONS ASKED ON THE SHOW What leak down number should I start to get concerned about. Switched this year and my percentages are climbing at a much higher rate than they did on gas. Normal? Is there any power advantage with the 1.5 rockers for a 602? Is it cost effective to refresh 602 or just buy a new engine. What’s the price difference? Steve have you seen any new 602s with oil pressure? How often should powervalves need to be done under normal circumstances? and what makes them go bad? Wha...
Sep 27, 2022•45 min•Ep. 128
QUESTIONS ASKED ON THE SHOW On a 604 crate in super stock class, Sunoco 102 race fuel one of the better options? Pump gas or race gas are the options. No methanol, oxygenated fuel, or E85 allowed. What is c85? I’ve heard you talk about the strange oval twist axles on your personal car before. What’s your opinion on them? Do they make a noticeable difference/ are they worth the money? What Rpm range should I gear for on 1/4 and 3/8 tracks, are you still making any power turning 6800, or would you...
Sep 20, 2022•56 min•Ep. 127
QUESTIONS ASKED ON THE SHOW Will it be ok to choose the pro cam mechanical fuel pump to stop the cause of vapor lock issue because the new gas pumps now all have 10% ethanol in it to use on a carburetor engine? Moving to a street/super stock class and going to be going with the 604 option. Rules just say must run a Holley 4 barrel carb, no aerosol carbs. Is the Ultra XP basically the way to go? 650 or 750 cfm better for the crate? I’ve heard you mention the strange twist axles on your personal c...
Sep 13, 2022•51 min•Ep. 126
QUESTIONS ASKED ON THE SHOW Would the Walker filter still accept the red K&N oil? Do u recomend those filters over paper filters? Is there any value in a 750hp carb on a 602 running VP d98 on a big track 6200 chip? We run a 604 crate in a sprint car with a Ron's fuel injection. What do you recommend for oil? Thoughts on the spyder filters just like r2c? You hearing anyone having trouble with this new sunoco e 85 over heating more then usual? Welcome to the Racing Insider’s Podcast! Each week...
Aug 30, 2022•47 min•Ep. 125
Welcome to the Racing Insider’s Podcast! Each week, Kate Dillon from Crate Insider and Steve Hendren from Hendren Racing Engines go live on the Crate Insider Facebook page and Crate Insider YouTube Channel to chat about world events, random things, and to answer tech questions. New week, new studio! This week's show is the first one in the new studio, click here to check it out. Several manufacturers joined live and helped out with tech questions. Shoutout to Bill Pink with Bill Pink Carburetors...
Aug 23, 2022•45 min•Ep. 124
