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  1. 4

    Does anyone recognize this 64 Impala? 409 with a 5 speed. Used to have dual ladder bars under it.

    That should really help with preventing axle twist changing pinion angle if it is solid mounted to the axle housing,as far as the weight it is on the right end of the car.
  2. 4

    348 heads on a 409 block

    The 333 heads with 2.06/1.72 valves installed will closely approximate the original correct heads for your 340hp engine,they will easily accept 2.19/1.72 valves and can be ported to support close to 500 hp.The 379's have already been a restriction for that 340hp motor.
  3. 4

    58 Impala 348 p/s bracket holes

    Anybody know why the early bocks had the bosses if they weren't drilled and tapped?Were they already planning to eliminate the combination generator/PS pump?
  4. 4

    348 Engine Patent

    It is interesting to note that both Ford and Mopars performance big blocks of that era went on to be prolific truck motors,the 390 and 413 were way more common in medium duty trucks and motorhomes than the W's ever were,but it makes sense that the marine and industrial divisions would use the...
  5. 4

    348 Engine Patent

    The perception that the W was designed as a truck engine dates back to at least 1963 probably longer.The Chevrolet Performance Handbook by Ocee Rich published as part of the Hot Rod magazine technical library in that year,has an article titled "Engineering the W 348-409 powerplant" that...
  6. 4

    Anybody seen the Sept 2019 Hot Rod article on the 1960 348 4 spd. Impala found in Idaho junkyard?

    I remember the Bad Seed 500 Cad in chevette crazy fast for what it was.
  7. 4

    348 Tri-Power Build gone wrong!!!!

    Don by the pics he posted at the beginning it appears his 872 block has the extra metal needed for the holes you can see where his head gasket left a nice little stain where to drill the holes.The heavy load thing makes perfect sense,and also shoots holes in the myth that the W was designed as a...
  8. 4

    348 Tri-Power Build gone wrong!!!!

    I don't know if its a must but you do gain the benefits of the cooling for the sparkplug area if you do.There must be a reason Chevy did it in the first place,maybe allows the use of a hotter plug?If so a hotter plug will be more resistant to fouling,but will become a source of detonation if...
  9. 4

    348 Tri-Power Build gone wrong!!!!

    Your drilling the sparkplug cooling holes in the block for use with the 333's right?
  10. 4

    Anybody seen the Sept 2019 Hot Rod article on the 1960 348 4 spd. Impala found in Idaho junkyard?

    OK then non climate controlled building because I've seen what happens to cars that sit outside in SoCal,not much different from the ones in Arizona,or southern Nevada.
  11. 4

    Anybody seen the Sept 2019 Hot Rod article on the 1960 348 4 spd. Impala found in Idaho junkyard?

    You forgot the money to build a big climate controlled shop to keep them in too.I've had that exact same thought many times,but I would set my way back machine to the time of the early 70's gas crisis.The money would go farther.
  12. 4

    348 Tri-Power Build gone wrong!!!!

    I agree that a cam that can pull hard to nearly 6000 rpm is definitely a performance type grind,the problem is there were a lot of muscle car era engines that came stock with a cam that fell into that category,so then do you consider that as the staring point or do you step back to the...
  13. 4

    Anybody seen the Sept 2019 Hot Rod article on the 1960 348 4 spd. Impala found in Idaho junkyard?

    Is that a 59,I thought it was a 60,if that is a 59 and if I knew where the wrecking yard was I'd be all over it like stink on shit,tomorrow.
  14. 4

    Anybody seen the Sept 2019 Hot Rod article on the 1960 348 4 spd. Impala found in Idaho junkyard?

    Even though it would be impossible to document,a 4 spd car with posi and a set of correct date code 2.5" manifolds in the trunk would be enough evidence for me if the car had been sitting undisturbed for years.While it wouldn't be a great investment,if I wanted a car like that it would be close...
  15. 4

    Anybody seen the Sept 2019 Hot Rod article on the 1960 348 4 spd. Impala found in Idaho junkyard?

    Yeah I picked up on the aluminum 3x2 also maybe he was getting confused with the 389 SD ,Don the 2 dr htp didn't have an engine the engine shot was of the station wagon that was in the same yard.Sounds like the kind of car well worth restoring regardless.
  16. 4

    Anybody seen the Sept 2019 Hot Rod article on the 1960 348 4 spd. Impala found in Idaho junkyard?

    https://www.hotrod.com/articles/1909-exploring-chevys-first-big-block-idaho-junkyard/
  17. 4

    How long will an M22 Muncie hold up to 500hp?

    Woohoo and a Verti-gate to boot,anybody else notice how ridiculously expensive those have gotten lately?The Hurst Ramrods too.
  18. 4

    How long will an M22 Muncie hold up to 500hp?

    Back when Pro Stock was in it's infancy there GM and Mopar scattershields made with the Toploader bolt pattern but not so much the other way around.As much as people may hate to admit it the Toploader has always been regarded as the strongest muscle car era factory 4 spd. by far even in the...
  19. 4

    Anybody seen the Sept 2019 Hot Rod article on the 1960 348 4 spd. Impala found in Idaho junkyard?

    Is this car as rare as they imply in the article?P case posi third member in the trunk along with 348 exhaust manifolds,could anyone tell if they were 2.5"?
  20. 4

    How long will an M22 Muncie hold up to 500hp?

    Sounds like quite the tranny has all the advantages of the lenco without the complexity of the planetaries.
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