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  1. mrdap

    SBC Cylinder Head Decision

    As far as cylinder head brand goes, I would go with AFR
  2. mrdap

    Preferred Differential Lubricant

    Hello Team, Just wondering if there's a consensus on the preferred or best differential lubricant, both posi and open. The applications would be: 14 bolt 10.5 full float posi 14 bolt 10.5 full float open Dana 60 front, I believe it's open GM 10 bolt rear posi GM 10 Bolt 8.5" Front, also I...
  3. mrdap

    350 to 400 swap... Worth it?

    In My Opinion, Just depends what you want. I'm a big block man from way back. I've got a big block 396-375 horsepower 69 Camaro. Also a 396 67 Impala. Two 454 square bodies, a K30 and a C20. And a variety of small block 350 square bodies, and 350/327 muscle cars. If you want brute torque, doing...
  4. mrdap

    Show me your 8 lug wheels!

    I love those old eight lug Pontiac wheels
  5. mrdap

    What is this??

    Okay, this is part of the throttle return control (TRC) system. See pages 6E-2 and 6E-26-6E-28. Only exists on HD emissions equipped vehicles. Essentially it's an electro-vacuum system that operates above 1,900 RPMs (1,890 RPM to be exact). Above 1,900 RPM, the system actuates and prevents the...
  6. mrdap

    Headliner questions

    Can't seem to attach two pictures to one post. So here's the second picture... This one shows the 3M part number on the can
  7. mrdap

    Headliner questions

    I have used 3M Yellow Supertrim Adhesive very successfully for years. It is made to glue heavy materials such as headliners, vinyl tops, and carpet. If you use this stuff, and follow the directions, you better get it right the first time because it probably is not going to be coming off. Even if...
  8. mrdap

    Headliner questions

    Hi, I am not familiar with the term "snakebite perforated vinyl". I don't really know what the difference is between snake bite and regular pattern. I have attached a pic of the original headliner in my '81 Silverado.
  9. mrdap

    What is this??

    That is called the speed switch. 454 only. It's essentially a relay that's activated by RPM as sensed from the distributor. At 1,900 RPM, the relay contacts close, activating the speed switch valve. Reference Figure 8C-45-CK Series wiring page 2 of 29, from the 1982 service manual, page...
  10. mrdap

    350 to 400 swap... Worth it?

    No offense but you have a little math problem there. Based on your theory, a 454 will be 104 horsepower increase over a 350, not 154 horsepower increase. And it's about 200 lb heavier, in stock form.
  11. mrdap

    Prepping for front suspension rebuild

    Don't forget the idler arm. I agree with the previous post suggesting the use of Moog parts. The only way to go for suspension parts. Unless you're trying to keep it 100% factory original, then you have to search for the GM parts.
  12. mrdap

    Headliner questions

    My original '81 K30 Silverado is equipped with the saddle color perforated vinyl. I believe in 1981, the Silverados were equipped from the factory with the perforated vinyl, which was used on the Custom Deluxe models. In 1982 they switched the Silverado headliner material to the foam backed...
  13. mrdap

    Show me your 8 lug wheels!

    Very cool I love the look of vintage slots. Have them on one of my '69 Camaros. I've never even heard of Shelby brand slots. 16.5 in is pretty rare at this point
  14. mrdap

    New wheels/tires - 73 K10 w/2” lift

    Hi All, Sorry if it's a repeat question but does anyone know if that tire size, 33x12.5, will fit on a completely stock, unlifted '81 K30 1 ton, single rear wheels? Stock height, no lift. Thanks in advance if anyone knows. DAP
  15. mrdap

    WTB 454 Serpentine Accessory Brackets

    Pictures continued
  16. mrdap

    WTB 454 Serpentine Accessory Brackets

    These are the two parts I'm still looking for: These are parts for the early BBC serpentine setup for an '88 to '91 BBC squarebody found in 3/4 ton Suburbans and 1 ton crew cab squarebodies (R/V 2500 and 3500's). Also, this setup was used in the next body style '88-'93 C/K models. The first...
  17. mrdap

    New Member! Square Body Collector!

    Welcome from Arizona!
  18. mrdap

    Anti theft devices

    Well I was suggesting really any kind of quality electronic alarm system. You can wire in sirens, shock sensors, motion sensors, door sensors, hood sensor, glass break sensors, starter disconnects, backup batteries, remote door locks, remote windows, remote start, text, wireless paging. The list...
  19. mrdap

    Anti theft devices

    What about something like a Viper alarm system?
  20. mrdap

    Shock recommendation

    I've had Monroes, Edelbrock, Bilstein's and Ranchos on my trucks. Monroe Gas Magnums are pure junk even though they're made in USA. They basically perform like worn out shocks when they're brand new. Very little damping. I tried Edelbrock Performers IAS once on my C20 front, and after a few...
  21. mrdap

    Show me your 8 lug wheels!

    Another future upgrade
  22. mrdap

    Show me your 8 lug wheels!

    Here's my 8 lug wheels at the moment..
  23. mrdap

    WTB 454 Serpentine Accessory Brackets

    Many thanks!
  24. mrdap

    WTB 454 Serpentine Accessory Brackets

    Actually I believe that's a very rare part. Very very hard to find if someone needs it. But I already started with the full serpentine system I'm just missing those three little brackets. I'm sorry to make you go through all that trouble for nothing. Thank you very much! If you need help finding...
  25. mrdap

    WTB 454 Serpentine Accessory Brackets

    To the Team, Anyone here have dealings with: 1low4x4 or saucekid ?

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