A guide to building the lil guy. The Mighty 300

Discussion in 'Small Block Tech' started by Joe65SkylarkGS, Oct 27, 2009.

  1. Jim Nichols

    Jim Nichols Well-Known Member

    Last edited: May 22, 2021
  2. gsjohnny1

    gsjohnny1 Well-Known Member

    jim,
    how much work to fit the 340?
    have they looked at making it higher?
    $730 is a big chunk. have to squeeze other projects for that.....
    john
     
  3. Jim Nichols

    Jim Nichols Well-Known Member

    Johnny, We are trying to get the price down. The shipping is what is really ridiculous. Maybe shipping a dozen or more in one crate would be cheaper? You would need spacer plates for the 340. A 1" open spacer would be good for racing. Dan Jones had the Willpower on a flow bench and it flowed almost the same as the cylinder head alone. Compared to the Huffaker it had a better radius on the longer runners.
     
    Last edited: May 21, 2021
  4. Jim Blackwood

    Jim Blackwood Well-Known Member

    I didn't think firing order made any difference since we're just talking about the lobe profiles. There are differences in the LS and TA heads of course but just how much that affects the engine I'll be building? In other words, enough of a difference to make it unproductive to consider LS cam lobe profiles? Do you know how much different they are from the LT4 cam?

    Jim
     
  5. Jim Nichols

    Jim Nichols Well-Known Member

    Jim, Firing order does not matter as long as you specify you want the Buick one and not the LS. Delta has an LS profile they sell with a little more lift. With 1.6 rockers it would have .550 lift. The 1.7 LS rockers have .585 lift. The LS intake port flows over 300cfm with a mild cleanup. Very tall narrow intake ports.

    Domestic - Delta Camshaft
     
    Last edited: May 20, 2021
  6. Jim Nichols

    Jim Nichols Well-Known Member

    Another pic with spacer under throttlebody. Different intake/Wildcat for high port Wildcat Rover heads. Made by Willpower in Australia: spacer and tb.jpg
     
    Last edited: May 21, 2021
  7. Jim Blackwood

    Jim Blackwood Well-Known Member

    Just at a guess I think the valves have a good chance of clearing the pistons with the .500 lift. Maybe not with .550" But I haven't checked it yet. I'll know more after some assembly, probably after the BritishV8 meet, but if I do have to notch the pistons I expect I could as easily go .550 as 500. Sounds like that LT4 profile might be the better choice. I don't feel like I really need all the extra lift for a street engine and my heads are unported so 200cfm intakes. Hard to see how 300 cfm ports work at all on the street. Really don't want to screw up my idle.

    Nice looking intake, just needs the valley plate. Hope they get 'er done. Weight of a 300 aluminum intake would be about 12-13lbs. I have a 2bbl I can weigh again if you like, IIRC it and the 4bbl were within a few ounces of each other.

    Jim
     
  8. gsjohnny1

    gsjohnny1 Well-Known Member

    i've seen the stock 4 bbl intake and thought there was enough flat material to cut down for a plate to mount a blower on it.
    kind of hard to do it on this one.
     

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