Jason 98 TA

iTrader: (4)

Here's the hardness info from Canfield, these heads are hard!!! I've showed these figures to many race engine builders & everyone agrees they are great quality compared to heads of every price range!

robiferretti

Greek to me, but thanks for posting

Jason 98 TA

iTrader: (4)

Yeah I had to get a race engine builder here to help me understand it

Mike K.

Can you break it down a little for us? I dont understand it either but would be very interested to know what all that means.

jrp

iTrader: (16)

:popcorn:

waits for "but they...."

TVWilkes

It states the material is A356.The average hardness for A356 T6 is 92.1.Our heads checked 92.6.

Mike K.

awesome, makes sense now. You learn something everyday. Thanks Terry.

Ron@Vengeance

iTrader: (51)

Impressive.

Good to see some TECH in LS1TECH

99 Black Bird T/A

iTrader: (4)

Jason & Terry,

A few questions about that hardness test...

It appears about 1 out of ~31 heads ( 6 out of 187) is actually tested for hardness based on the data below. When that 1 head is tested is only one chamber tested or are all four tested? If a chamber fails is Canfield allowed to toss the failing head and retest another? Has an entire batch ever been tested? Has ever single chamber ever been tested for ever cylinder head for the entire batch? Have you confirmed via a 3rd party that Canfields hardness testings is accurate?

Are the chambers retested after the CNC maching to determine what chamber hardness is after CNCing?

Sometimes heat treat is shallow and the treated surface can be removed when a part is machined. I may have missed the data but how deep is the heat treating? How much material is removed when the heads are CNC'd?

Just wondering about the specific test procedures & quailty control for the product in question.

Thanks

TVWilkes

There is no way,in this form of heat treating,that it is shallow.The heads are placed in the oven 2 times.Canfield has been doing this type of work for years.I trust their experience with the heat treating process.

Pro Stock John

iTrader: (34)

Neat info.

Canfield is a good company.

SStroked 410

Since the other thread got locked up

Terry what about the 6.0l heads with 67cc...any welding or factory seats

mike m

iTrader: (6)

thanks for posting up the info, buts its kind of usless to us. maybe you could have someone from canfield come on here and post the info, or give a phone # of someone to contact at canfield.

Fast SS on TNT

iTrader: (1)

I'm getting my heads from Terry. I have faith in this being resolved by the time I get my corporate bonus March 10th. I still think the suspect heads from another post were subjected to an overheated motor.

PP is a good sponsor, and Terry is good to deal with.

mike m

iTrader: (6)

If you have these heads in your possesion. get them tested. do a leakdown test, and a hardness test. maybe even a flow test. just for piece of mind.

TVWilkes

Have the heads been milled?Are they setup for the 4.0 bore?Pm me your name so I can look up your records.Thanks, Terry

SStroked 410

Terry I am in the market for new heads and was just asking if I were to get your 6.0l/LS6 heads with 64-67cc

Justin99TA

Why would you do that??? Why does everyone seem to bash PP??? I just don't get it. They offer a product as good as some of the other porters but since it costs less people want to talk trash.

SPANKY LS1

iTrader: (24)

Do you live in a cave? Reading and research are your friends.

Shawn

Hannibal

Click on the little button up yonder that reads "SEARCH"

Oh - but BTW:

Hannibal Gomer .................... Just so he knows I still love him