Mopar 273 Commando projet, Mopar Magnum valves, Stroker sleeper, Mopar 920 heads

[273]

Using a piece of **** 188 intake valve and trying not to hit any water, 233 CFM is what I got out of them on the intake side

A small port like that flowing 233 cfm must of had fairly high average velocity.

 

[273]

 

[273]

 

[PRH]

When that job is all said and done, I’d love to know how many hours he invested in it………. And what the bill was

 

[Newbomb Turk]

When that job is all said and done, I’d love to know how many hours he invested in it………. And what the bill was

Whatever he’s charging it’s probably not enough

 

[PRH]

Whatever he’s charging it’s probably not enough

I agree.
It’s one of those situations where his overhead is pretty low, so he could charge well below market value……… but does he?

 

[273]

I agree.
It’s one of those situations where his overhead is pretty low, so he could charge well below market value……… but does he?

Rumblefish probably knows, he's done things for him, to me it seem like a hobby/business.

 

[PRH]

I’m pretty sure it is indeed a “side hustle”.

 

[273]

 

[Mean416]

Crazy how many man hours have been poured into projects like this. Not just the guy porting these heads, but all the copycat misinformed guys that will be working their *** off only to get - at best - marginal improvements.

Some myths need to laid to rest. One is that 302 heads - and really - any LA heads - are worth messing with beyond the most basic cleanup work. Sure...debur the rough spots, do a rough port match, get the valve job sorted out correctly. That'll get the average joe results.

Another myth is that anything beyond really basic port work, done by the average joe, will yield good results. If I've learned anything at all on this forum it's that porting these heads really requires a flow bench, lots of experimentation, and experience.

 

[toolmanmike]

Crazy how many man hours have been poured into projects like this. Not just the guy porting these heads, but all the copycat misinformed guys that will be working their *** off only to get - at best - marginal improvements.

Some myths need to laid to rest. One is that 302 heads - and really - any LA heads - are worth messing with beyond the most basic cleanup work. Sure...debur the rough spots, do a rough port match, get the valve job sorted out correctly. That'll get the average joe results.

Another myth is that anything beyond really basic port work, done by the average joe, will yield good results. If I've learned anything at all on this forum it's that porting these heads really requires a flow bench, lots of experimentation, and experience.

Yep. My 273 heads. What did they flow? They were never put on the bench.

 

[NC Engine Builder]

I did a set of "302" heads a few years ago for a FABO member, and I did flow them when I was done, but the numbers were quite disappointing, I threw my notes away on those.

 

[Newbomb Turk]

I did a set of "302" heads a few years ago for a FABO member, and I did flow them when I was done, but the numbers were quite disappointing, I threw my notes away on those.

lol

 

[273]

The only performance engine I could see using 273/318 heads on (stock or ported) is a 273.

 

[toolmanmike]

I did a set of "302" heads a few years ago for a FABO member, and I did flow them when I was done, but the numbers were quite disappointing, I threw my notes away on those.

You don't need much more than a little common sense porting for improvements.

 

[273]

I don't agree with the overall build, I still find it interesting what people can get out of stock parts.

 

[Illahe]

Crazy how many man hours have been poured into projects like this. Not just the guy porting these heads, but all the copycat misinformed guys that will be working their *** off only to get - at best - marginal improvements.

Some myths need to laid to rest. One is that 302 heads - and really - any LA heads - are worth messing with beyond the most basic cleanup work. Sure...debur the rough spots, do a rough port match, get the valve job sorted out correctly. That'll get the average joe results.

Another myth is that anything beyond really basic port work, done by the average joe, will yield good results. If I've learned anything at all on this forum it's that porting these heads really requires a flow bench, lots of experimentation, and experience.

This: but all the copycat misinformed guys that will be working their *** off only to get - at best - marginal improvements.