EP058 Bristol, Valve Springs, and Hashtag Holidays

Welcome to our show Unsealed: Life Beyond the Bolts! Each week, Kate Dillon from Crate Insider and Steve Hendren from Hendren Racing Engines go live on the Crate Insider Facebook page to chat about world events, random things, and to answer tech questions.

This Week

This week has been busy for Kate and Steve. Kate has been preparing for Bristol, complete with a freshly wrapped van (done by Dirt Wrap). Steve has been working hard to get engines rebuilt for his awesome Hendren Racing Engines customers and keeping up with interesting holidays.

Questions Asked On The Show Steve tell us the difference between the mobile one that is advertised on the oil pan and a more producible oil.
I got a 604 from gm do they come with the valves shimmed or should I shim them when I change springs?
What’s the MSD RPM pill that you recommend??
what kind of fuel pressure should I be pushing at high speed, 604/methanol with bypass regulator?
Bought a 602 that was pretty carbonized up in valves and top of piston. Any way to help clean that out?
How much of a worry is there really about the back order problem with the 602/604?
If yr distributor is locked. Do you still set timing a 0 on harmonic balancer. Is is there a better way to figure out timing?
Have you ran a drop base on a billet with a 2 inch or taller spacer?
Steve, do you like anti-reversion mufflers on a 604?
602 valve springs. Do you recommend TDC or run air into cylinder to keep valve from dropping? What psi?
Is the best way to set fuel air mixture by using a vacuum gage?
Talking about carburetors what kind of spacer do you recommend?
So my friend in chico is running a 4412 on his 602 and iv ben trying to convince him to run a 4bbl so how much power is he leaving on the table?
what brand and CFM 4bbl do u recommend for the 602?