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  1. Wumbo

    454 Big Block Chevy Build

    He really is the exception to the rule. I've read a bunch of his stuff over on the Chevelle forum. I think he is doing quite a bit of port work to get those numbers. Most people dont jump into porting heads, and so they have to pay the people who do. If you are paying someone to port them, why...
  2. Wumbo

    454 Big Block Chevy Build

    A couple in stands, a 468 in the truck, and building a 650 hp 496 for my Camaro. 496 has Dart Pro1 heads with Del West titanium valves.
  3. Wumbo

    454 Big Block Chevy Build

    Brodix Race Rite oval port 270cc My opinion
  4. Wumbo

    454 Big Block Chevy Build

    Peanut port heads. Good for low rpm torque, but not exactly performance oriented. 781, 049, and 820 castings are good oval port open chamber heads if you want factory iron. Aluminum heads are the way to go if you want to spend the money. Just stay away from the cheap chinese heads. Maybe I...
  5. Wumbo

    454 Big Block Chevy Build

    What heads are you using?
  6. Wumbo

    Mechanical fuel pump

    I've never measured my pressure. When it stops working, I replace it. Also agree, 570 is too small for a 454 396.
  7. Wumbo

    Just joined. A few pics of my 86 C15

    Sharp truck!
  8. Wumbo

    high idle

    ^This My engine was dieseling when mine was out of adjustment.
  9. Wumbo

    Yeah my posts are too long, but... this truck...

    My truck looked a lot like that when I started. I had a lot more dents, and a couple holes to fix though. If you keep that patina, you will want to rub it down with boiled linseed oil. I think most people reapply it once or twice a year. If you sand it down, your going to be amazed at how...
  10. Wumbo

    Can I use my stock 454 intake???

    TBI has better cold starting, and should get better gas mileage. Good driveability, and reliability, if a stock engine is what makes you happy. I like carbs or aftermarket EFI for wilder engines. If you have any interest in keeping the TBI, I might be able to work a deal out with you in the...
  11. Wumbo

    Should I make a daily from my "parts truck" 76 GMC....??

    I'd make it a decent driver and sell it, rather than chop it up.
  12. Wumbo

    402 Experts... Tell me what you know

    You don't need to worry about 4 bolt mains at that power level.
  13. Wumbo

    I'am Going To Build A Smooth Idle 427

    Why is there an engine in the laboratory?
  14. Wumbo

    Need advice--Camshaft degree issue (maybe??)

    What was the degree wheel reading at that point? Nevermind, re-read what you posted.
  15. Wumbo

    What new tools have you got lately?

    Are headers a tool? Otherwise, this... Lisle 18000 cam bearing tool set.
  16. Wumbo

    Cutting down valve guides & reusing head bolts??

    That's just one thing I can't cheap out on. ARP bolts go in every head, main, and rod that I build. They're expensive because they're superior to OEM. Especially 50 year old OEM fasteners.
  17. Wumbo

    Lifting engine in place with carb studs?

    Yeah, C20 with no factory cats I think
  18. Wumbo

    Lifting engine in place with carb studs?

    There was a bad batch of iron back in the mid 80's that was causing the cast iron exhaust manifolds to crack. For 2 years Chevy made stainless steel tubular manifolds while they figured out the problems with the iron. My 86 454 came with them, but I thought that was only a big block problem...
  19. Wumbo

    Lifting engine in place with carb studs?

    Why wrestle with it? These engine levelers work great.
  20. Wumbo

    Title problems, vin swap?

    The legal way to do it, is get a bonded title.
  21. Wumbo

    Thoughts on going to a 4spd overdrive?

    What about speedometer?
  22. Wumbo

    New Tires are Ugly. Bring the Classics Back!

    https://www.buchanantrailtire.com/Shop-For-Tires/view/single/tireid/cooper90000019978
  23. Wumbo

    charcoal ingestion

    Was going to say the same thing. As for engine damage, most activated carbon is made from bone or coconut shell. It's somewhat abrasive, but I dont know if it's hard enough to damage cylinder walls, rings, or valves.
  24. Wumbo

    Small block or Big block?

    820 heads will give you a bump in compression (113 cc chambers) and still flow similar to 049 and 781 heads.
  25. Wumbo

    Small block or Big block?

    20110710 cam

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