Power guess on a new combo

[vntned]

340
0.030” TRW forged pistons
0.040” out of the hole
Stock rods
Steel crank
Milodon 8qt pan
Mopar cam 557” lift 252* @0.050
W2 heads fully ported
2.08 1.60 valves
Victor W2 intake ported to match heads
Holley 750
Hedman Hustler 2” fenderwell headers

This will be going in my ‘64 dart backed by an 833 4spd and 4.10s in the Dana outback.

Power guesses?

 

[justinp61]

How much compression?

 

[vntned]

Should be near an actual 10:1.

 

[justinp61]

430ish. It should be a hoot in your Dart.

 

[rumblefish360]

Rocker ratio?
Head chamber cc amount?

 

[RustyRatRod]

430ish. It should be a hoot in your Dart.

Yeah I'm thinkin you're just about right.

 

[Syleng1]

One hundred and forty horse or a tad more

 

[Rmoore]

Stock stroke

 

[67autocross]

475hp all day if those heads are ported decent….

 

[harrisonm]

430ish. It should be a hoot in your Dart.

I was going to say about 429 or so, but I'll just go with your guess.

 

[Rat Bastid]

You’ll be down 30 hp with that cam. You need something with a 105 or even a 104 LSA IF you are wanting to optimize what you have.

 

[Ironracer]

Just call it a Lil Ripper..... it's gonna be Fun as Heck Man!

 

[rumblefish360]

You’ll be down 30 hp with that cam. You need something with a 105 or even a 104 LSA IF you are wanting to optimize what you have.

On a 10-1, 340 - 2.02 valve engine?

 

[Rat Bastid]

On a 10-1, 340 - 2.02 valve engine?

Yup. Isn’t that .557 cam on a 110 LSA?? I never called them by their lift. No one I know ever did that. We called them by the duration. So I very well could be wrong on what LSA his cam has.

 

[rumblefish360]

Yup. Isn’t that .557 cam on a 110 LSA?? I never called them by their lift. No one I know ever did that. We called them by the duration. So I very well could be wrong on what LSA his cam has.

I think it’s a 110, I’d have to check to be double sure.
MIGHT be a 108. I don’t think so, again, I’d have to check.

 

[TT5.9mag]

Mopar Perf. "Purple Shaft" Mechanical Camshaft Kit

That cam is ground on a 110 lobe sep.

 

[SSG_Karg]

That thing is gonna turn on quick. Like a chainsaw. Your right arm is gonna get a workout rowing the stick. 430-450 hp

 

[Nat]

450 TO 470 HP If the heads are well prepped

 

[B3422w5]

10 to 1 stock stroke 340 with a 2 inch header?
We’re it me I would look at another set of headers, those would be torque killers

 

[vntned]

The heads were ported by Bud Elkins over 35yrs ago. I imagine the flow 300+.

Long term I intend on putting a stroker 416 shortblock under these heads, but I scored this 340 for a great deal, so I figured I’d put it to use.

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