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  1. xm20k

    Needs MORE POWER!!! (Tim Taylor Style!!!)

    A cam and a better set of heads, even just stock type heads with 64cc chambers would be an improvement over the ones currently on it. Possibly even a full rebuild with a set of flat tops.
  2. xm20k

    Needs MORE POWER!!! (Tim Taylor Style!!!)

    As for the block the pistons could be anything, a scope could allow you to see if they are flat or dished. The heads are basically crap as far as performance is concerned
  3. xm20k

    Needs MORE POWER!!! (Tim Taylor Style!!!)

    76cc chamber with small valves. There's one thing you could improve on without a full rebuild, small chamber heads with the bigger valves however at that point id do a cam and lifter set as well while I was in there. Also yes if the blocks ever been decked it'll wipe those numbers behind the...
  4. xm20k

    Truck Overheating

    195 seems a bit high I run a 180 in all my stock small blocks and 160 in my race engine Some thermostats will also open slow a 180 for instance will not fully open till say 190-200 and then rapidly cool down to 180 once fully open
  5. xm20k

    Needs MORE POWER!!! (Tim Taylor Style!!!)

  6. xm20k

    Needs MORE POWER!!! (Tim Taylor Style!!!)

    Casting number for block should be behind the driver side head on the top of the flange were the trans bolts up. The head numbers are on the top of the heads under the valve cover between the rockers. Here are the numbers one for heads one for blocks...
  7. xm20k

    3” header back exhaust pipe kit for 2wd?

    I used a set of headers for a 70s Chevelle, malibu, Nova, Camaro etc. To keep the collectors higher up in the frame rails with my 4/6 drop. and run a summit dubble hump crossmember. 3" straight pipe and race bullets. Yes there are 4 of them this junk is loud
  8. xm20k

    Needs MORE POWER!!! (Tim Taylor Style!!!)

    Casting numbers off of both block and heads google the numbers will give you specs like year of block 2 or 4 bolt etc. same with head casting number should give year range chamber size, valve size etc. as for cam if it isnt stock only way to find out is to pull it and check numbers on the end.
  9. xm20k

    Carb backfire under load

    Could be distributor module also check to see if the mechanical advance isn't sloppy and springs back and doesn't just flop around.
  10. xm20k

    Needs MORE POWER!!! (Tim Taylor Style!!!)

    In stock form a 400 made a whopping 150-265HP year and application dependent. With a bit of a cam probably a towing or RV cam all else stock 2-300 depending on which piston type and or head was used. The right way to make more power is to rebuild it put in a set of flat top pistons, 64 cc...
  11. xm20k

    aftermarket heads

    Summit sells Vortec heads capable of .525 lift and thread in studs complete. These require a vortec intake manifold. The older style cast heads will most likely have press in studs which I would never trust and would have to have machined for screw in studs before even considering using...
  12. xm20k

    Hello From OH

    Hello all from Ohio Been lurking here over the last 2 years while building my 78 My Junk 388 fully forged stroker Comp 252 .600 110 roller Edelbrock 70cc aluminum heads Edelbrock tunnel ram with duel 500cfm AVS2s Reid cased Powerglide built to hold 2000HP with trans brake and 4000 stall 9"...

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