Re: [318poly] Re: "What is that, a 413? A 440?"

[Gary Pavlovich <glpavlovich@xxxxxxx>]

Polyheads,

Had a nice engine break-in session on the dyno the other day with one of my 390" Poly Stroker builds.

We made 412HP@5600rpm and 438ft.lbs.torque.  As is common with the Poly 318 engine the HP and Torque curve was very high and flat.  
We averaged 428ft.lbs. of torque from 3400rpm to 5400rpm...now that will set you back in the seat and keep you there; not bad for a "throw-away" motor.

Cast iron dual quad w/500cfm Edelbrocks, 9.5compression, Hyd. Poly Cam with 290/.482" Advertised and 232@.050" , 1.94/1.60" 11/32" Stainless Valves, a modest head flow of  208/151cfm @.500" lift, 16deg. initial adv. 34total...should make a few more HP and Torque once the rings get used to their new home.

Gary Pavlovich
  ----- Original Message ----- 
  From: Shaun & Melynda Rainsbarger 
  To: 318poly@xxxxxxxxxxxxxxx 
  Sent: Saturday, April 23, 2011 9:04 PM
  Subject: Re: [318poly] Re: "What is that, a 413? A 440?"


    

    Better get out your tape. I replaced a Wrinklehead 318 (another nickname) with a 440 and it was I think, almost two inches narrower. Remember, the "A" poly is based on the other earlier polys, that would swap heads with the same vintage/make hemi. Back then for heads, it was wider is better. Until sales couldn't pay for the costs.
    ----- Original Message ----- 
    From: Cory 
    To: 318poly@xxxxxxxxxxxxxxx 
    Sent: Saturday, April 23, 2011 6:54 PM
    Subject: Re: [318poly] Re: "What is that, a 413? A 440?"


      
      It has something to do with the FACT that the 318 Poly block has the EXACT same dimensions as the 318 wedge block.  
    Cory


    On 4/23/2011 6:30 PM, belvederetwo wrote: 

        
      I know that they've been called that, I was saying that lately I keep hearing people say they aren't a wide block, or that they were mistakenly called that. I'm just wondering why people are saying that and where they're getting *their* information from.

      --- In 318poly@xxxxxxxxxxxxxxx, dodger7998@... wrote:
      >
      > they have been called wide blocks ever since the first LA engines showed 
      > up,,,,, they are definitely wider than the LA,,,,, do not have the exact 
      > measurements in front of me, but if Rich was around he could tell you 
      > exact,,,,,, the poly is almost as wide as the RB Wedges but narrower than the 
      > hemi's,,,,,,, do a search on the internet, and look for" wide block dodge" and 
      > see what comes up
      > 
      > 
      > In a message dated 4/23/2011 8:15:32 P.M. Central Daylight Time, 
      > belvederetwo@... writes:
      > 
      > 
      > 
      > 
      > 
      > 
      > --- In _318poly@xxxxxxxxxxxxxxxx (mailto:318poly@xxxxxxxxxxxxxxx) , 
      > dodger7998@ wrote:
      > >
      > > Close,,,,,,,, tell them it is called a Wide block,,,,,,,,,,,,,
      > 
      > Lately, I keep reading things or hearing people say "... it's mistakenly 
      > called a wide block."
      > 
      > What's up with that? Someone even told me "it's the same width as an LA".
      >




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