452 heads

[1wild&crazyguy]

Ok heads arrived. how to tell if they have been ported?

Do springs have part numbers? If not is there a way to test them to see what they will stand up to?

take a pic and post it on here, a few for each int and exh.

need to check the springs to make sure they fit the cams bill.

 

[72ScampTramp]

this should answer alot of questions. I took these down today to have flowed. Here is the sheet.

 

[72ScampTramp]

little larger photo

 

[RustyRatRod]

Like I said, they ain't stock.

 

[72ScampTramp]

Yeah he first said they dont look ported at all. And said id be waisting my money if I flowed them. I told him to go ahead and do it anyways 70 miles down there i didnt go for nothing. Then he came out and said they surprised him. Said the exhaust flowing like it does is really good.

 

[72ScampTramp]

So now that I have the variables what kind of power can I expect?

.030 440
452 heads ported
Lunati 60431 http://www.lunatipower.com/Product.aspx?id=2560&gid=317
about 9.3 to 1 compression
2x600 weiand D port Tunnel ram 2 holley 600 cfm carbs
Windage tray (IDK does this really help?)
Pro Parts 2" headers

 

[moper]

Interesting between 400 and 600. I'd love to se a reading from .550... because the increase seems to plateau, then somewhere between .500 and .600 picks up again. If I was camming for these heads, I'd be looking to either stay below .500, or go above .600. They are a decent head, and much imporved over stock (yes, the exh #s are good), but it's a wierd step in the flow curve right where I wouldn't want it.

 

[72ScampTramp]

.600 lift might be too much for a street car. But thanks for the input. Im tickled to death right now. Not bad for $200 investment.