318 build with dyno session

[NC Engine Builder]

So the initial run in and cam break in went smooth, zero issues other than I have a leak on the milodon oil pan. I am not suprised by the leak one bit. @318willrun mentioned these pans in his last video, But regardless, I'll get that fixed and then try to schedule a dyno day. I will say that it sounds milder than I expected, it sounds fairly docile, me thinks it probably wont make 400 but we will find out!

 

[Dart Frog]

Did you have to enlarge the push rod holes in the heads to use the 1.6 rockers ?

 

[318willrun]

So the initial run in and cam break in went smooth, zero issues other than I have a leak on the milodon oil pan. I am not suprised by the leak one bit. @318willrun mentioned these pans in his last video, But regardless, I'll get that fixed and then try to schedule a dyno day. I will say that it sounds milder than I expected, it sounds fairly docile, me thinks it probably wont make 400 but we will find out!

Will there be video of the dyno pulls ?

 

[toolmanmike]

Will there be video of the dyno pulls ?

I hope so.

 

[B3422w5]

So the initial run in and cam break in went smooth, zero issues other than I have a leak on the milodon oil pan. I am not suprised by the leak one bit. @318willrun mentioned these pans in his last video, But regardless, I'll get that fixed and then try to schedule a dyno day. I will say that it sounds milder than I expected, it sounds fairly docile, me thinks it probably wont make 400 but we will find out!

Lol
Don’t let that fool ya. That 318 I had sounded like a Ford Tempo idling around. But…..

 

[fishmens67]

me thinks it probably wont make 400 but we will find out!

Don't cut yourself short, I expect it to make at least 401 hp.
Looking forward to any dyno work you share.

 

[TT5.9mag]

My 9:1 318 with cleaned up stock heads and a comp xe268 sounded like a minivan. You could only barely tell it had a cam in it. And I’d guess it made 200 to the tire.

 

[NC Engine Builder]

Did you have to enlarge the push rod holes in the heads to use the 1.6 rockers ?

No, it's close, but no rubbing

 

[NC Engine Builder]

Will there be video of the dyno pulls ?

Yes

 

[crackedback]

Should breach 400 pretty easily with that solid cam and induction

Probably do OK up to about 6500 if the springs keep up.

 

[a-bodyguy]

410@6100

 

[toolmanmike]

Yes

Are those AFR heads the 175cc ones? Looks like a nice head OOTB. A bit bigger than the Speedmasters and Edelbrock's.

175cc Small Block Mopar (LA) Cylinder Head

Cylinder Head Specialists

www.airflowresearch.com

 

[NC Engine Builder]

Are those AFR heads the 175cc ones? Looks like a nice head OOTB. A bit bigger than the Speedmasters and Edelbrock's.

http://[URL]https://www.airflowresearch.com/175cc-small-block-mopar-la-cylinder-head/p659

[/URL]

That's the ones

 

[318willrun]

Are those AFR heads the 175cc ones? Looks like a nice head OOTB. A bit bigger than the Speedmasters and Edelbrock's.

http://[URL]https://www.airflowresearch.com/175cc-small-block-mopar-la-cylinder-head/p659

[/URL]

Are they bigger? I thought they were all working from the same castings (which are pretty good castings). ProMaxx, Speedmaster, AFR...

 

[toolmanmike]

Are they bigger? I thought they were all working from the same castings (which are pretty good castings). ProMaxx, Speedmaster, AFR...

Sorry for the crude note.

 

[NC Engine Builder]

Are they bigger? I thought they were all working from the same castings (which are pretty good castings). ProMaxx, Speedmaster, AFR...

I believe there is only one AFR version, there may be a slight difference in port volume due to the bowl work, compared to the other brands, but I didn't measure these

 

[fishmens67]

Sorry for the crude note.

View attachment 1716433364

Mediocrity !

 

[318willrun]

Sorry for the crude note.

View attachment 1716433364

I figured each company would provide their own valve jobs, etc. I just thought they started with the same castings... but maybe not. Promaxx shockers used their own work and got some flow, I know a couple people that have used the shockers.

 

[toolmanmike]

I figured each company would provide their own valve jobs, etc. I just thought they started with the same castings... but maybe not. Promaxx shockers used their own work and got some flow, I know a couple people that have used the shockers.

Take one of Pittsburgracer's heads, duplicate the port work, and produce cnc's heads. Part of the profit goes to his kids.

 

[RustyRatRod]

Here's the AFR site.

175cc Small Block Mopar (LA) Cylinder Head

Cylinder Head Specialists

www.airflowresearch.com

I know the Ford and Chevy guys used to hold AFR on a pedestal ........before Trick Flow came on the scene. I don't know about know. That said AFR has a LOT more part numbers available for Ford and Chevy.

 

[fishmens67]

Take one of Pittsburgracer's heads, duplicate the port work, and produce cnc's heads. Part of the profit goes to his kids.

If we could only get our hands on one.
The feelers are out and I have just the guy to copy his work

 

[cookietruck]

I figured each company would provide their own valve jobs, etc. I just thought they started with the same castings... but maybe not. Promaxx shockers used their own work and got some flow, I know a couple people that have used the shockers.

Promaxx shockers are cnc ported.

They have maxx head that should be on par with the AFR heads. Maybe a nicer valve job with the promaxx based on pics Pittsburghracer posted a long time ago.

 

[junkyardhero]

i'll guess that it tops 400, but not by a ton. probably 410~420 and it'll be over 6K

 

[318willrun]

Promaxx shockers are cnc ported.

They have maxx head that should be on par with the AFR heads. Maybe a nicer valve job with the promaxx based on pics Pittsburghracer posted a long time ago.

Yes, but I meant the bare casting was the same.

 

[cookietruck]

Yes, but I meant the bare casting was the same.

Oh i see.
Yeah that seems quite likely.

Not that it’s a huge difference but I think the AFR site lists the valves for their heads as 8mm.