Topics

1

Matt Shaff's Engine Shop / hprsepower limit of 392

« on: February 04, 2014, 05:28:45 PM »

Working to get a hemi in my old battlewagon. 

USE - Bracket type, oldy racing.


CAR - 1960's altered, hardtail, 125".  Using  powerglide.
       - Most the cars in the club have about 700 hp.

I need the engine to be as dependable as possible  (I just don't  have the time or money to blow up even one hemi)

ENGINE STUFF I HAVE -

      - .060 392
      - Couple good std. cranks
      - HotHeads aluminum heads
      - Good blown alchohol roller cam
      - vertex
      - 6-71  non-stripped
      - Bugcatcher

SO HERE'S MY QUESTIONS:

1- What's the horsepower limit of a 392 w/ 4bolt caps and stock crank?  By that I mean what's the limit where it is still very dependable?


2- To produce 700 hp do I need to concern myself with a stroker crank  or fancy blower?  (although an offset grind w/ Chevy rods is easiy enough).

3-It seems every hemi guy I've ever talked to says that race engines must have aluiminum rods.  Go to a doorslammer site and they make a lot of power on steel rods.   At 700 horsepower is there any reson I can't use the K1 steel rods?  What about even Eagles? 

4-If aluminum really soaks up shock then what about alumimum main caps and steel rods?  Do you even get that much shock and vibration in an engine that's not nitro?

I know that's alot but I appreciate the help. 

2

Front Engine Dragsters / power/durability limit for 392

« on: February 04, 2014, 04:41:30 PM »

Working to get a hemi in my old battlewagon. 

USE - Bracket type, oldy racing.


CAR - 1960's altered, hardtail, 125".  Using  powerglide.
       - Most the cars in the club have about 700 hp.

I need the engine to be as dependable as possible  (I just don't  have the time or money to blow up even one hemi)

ENGINE STUFF I HAVE -

      - .060 392
      - Couple good std. cranks
      - HotHeads aluminum heads
      - Good blown alchohol roller cam
      - vertex
      - 6-71  non-stripped
      - Bugcatcher

SO HERE'S MY QUESTIONS:

1- What's the horsepower limit of a 392 w/ 4bolt caps and stock crank?  By that I mean what's the limit where it is still very dependable?


2- To produce 700 hp do I need to concern myself with a stroker crank  or fancy blower?  (although an offset grind w/ Chevy rods is easiy enough).

3-It seems every hemi guy I've ever talked to says that race engines must have aluiminum rods.  Go to a doorslammer site and they make a lot of power on steel rods.   At 700 horsepower is there any reson I can't use the K1 steel rods?  What about even Eagles? 

4-If aluminum really soaks up shock then what about alumimum main caps and steel rods?  Do you even get that much shock and vibration in an engine that's not nitro?

I know that's alot but I appreciate the help. 































     

3

Wanted to sell / Steering box, injector, M/T mag case(olds)LOTS MORE...LOOK

« on: November 20, 2013, 02:48:44 PM »

First off, I'm new here.  Is there a "newbie" page where I'm supposed to intro myself before any blogging here?  Thank you for the chance to join up.

I am cleaning up my shop and have some FED & altered stuff.

-P&S steering box
-Chrome tube axles (anglia). A gennie Anglia axle n spindles.
-Hillborn for early hemi
-Mickey Thompson Olds cases both aluminum and mag.  Box of Olds small parts.
-Narrowed housings, both little Olds and 8 3/4
-Airheart stuff
-Fiberglass seat that will fit in within 19" shoulder hoop
-SBC zoomies
-NOS Sommers Bros axles for little Olds. wider than dragster, probably alterd width.
-8-71 case, Bowers magnesium, damaged.
-Very early Cragar 4-71 setup for SBC w/ four carbs...etc.  Cool, very.
-Algon 6-71 injector scoop  (the "step scoop")  May have an injector casting that's early Algon for 6-71
-6-71 cores
-lots of 4-71 stuff.enough to build three setups for SBC

Thank you very much
Wayne

There's a lot more...just digging it all out.  Would anyone be interested in a group purchase or buying it on one lot?