Cylinder Head Porting

[GenF-GTS]

Originally Posted by ZO6 Bryan

True, but some of the real gains are not in the CNC program but in the actual valve job angles and hand blending. And there is a lot of difference in shops there.
Personally I would send your heads to Brian Tooley. He will have the CNC work done at Total Engine Airflow then hand finish and assemble them himself.
For those that don't know, Total Engine Airflow was Tooley's business before he sold it to to Summit Racing. But all the port designs they use were developed by him.

TEA heads are in that engine dyno comparison I linked to, test #7

[Smittty]

Originally Posted by Stephen12ZL1

Advanced Induction is a good choice as well. Ask Smitty and the guys at PCM of NC!

Very happy.

[DrkPhx]

Chris Frank/Frankenstein heads has a very nice LSA program and does great work on LSA castings. If I went to add heads, I would probably go this route.

[GenF-GTS]

Originally Posted by DrkPhx

Chris Frank/Frankenstein heads has a very nice LSA program and does great work on LSA castings. If I went to add heads, I would probably go this route.

Yeah it's a shame his brand and many others were not tested in the hot rod mag test.....I believe he has a very great team and they put out some really great products.

I myself was going to buy his version of the med bore mast heads however the foundry at the time was out of stock for mast and frankenstein.

So i ended up buying the mast med bore from a local aussie distributor.

[DrkPhx]

Mast makes a great head. I wanted to use them on my previous build, but they were never in stock.

[Trackman]

Originally Posted by DrkPhx

Mast makes a great head. I wanted to use them on my previous build, but they were never in stock.

I wanted to buy Mast as well. Same thing. No answered calls or emails .
Terrible customer service.

[14ZL1M6]

Originally Posted by ZO6 Bryan

True, but some of the real gains are not in the CNC program but in the actual valve job angles and hand blending. And there is a lot of difference in shops there.
Personally I would send your heads to Brian Tooley. He will have the CNC work done at Total Engine Airflow then hand finish and assemble them himself.
For those that don't know, Total Engine Airflow was Tooley's business before he sold it to to Summit Racing. But all the port designs they use were developed by him.

This is the way my buddy is steering me. He knows Brian real well. I wasn't aware he hand finishes them after the CNC?

[14ZL1M6]

Originally Posted by GenF-GTS

Have a read here http://www.hotrod.com/how-to/engine/...er-heads-test/

Note mast heads in this comparison suit a large bore....here are the medium bore comparison:


Mast Med Bore head results!!!

Was forwarded a link to a hotrod mag test from SQP about the mast medium bore heads http://www.superchevy.com/how-to/eng...p/viewall.html - note the heads may have slightly changed since this article or it was a typo as they claim it is a 12 degree head not 11 degrees and the quoted flow numbers are similar and not the same. I'd assume whatever changes if any were made from this older medium bore head to the current would have been for the better.

These results are more impressive.

A crate motor LS3 was ran up on the dyno in stock form it laid down
469HP and 465lb-ft
It then had a camshaft change to 225/231 0.602/0.607 115LSA

It then laid down 533HP and 480lb-ft a gain of
+64HP and + 15lb-ft

It then had a head swap to the medium bore heads it then laid down
568HP and 507lb-ft a gain of
+35HP and + 27lb-ft

So all up the head gain was decent enough now netting an additional 35HP and 27lb-ft at peak.....no average HP or torque numbers were provided but the peak gains were decent.

In theory this could translate into a 40HP gain at the engine on a healthy 600HP motor.

Thanks for posting this! I forgot about this article....I've read it before.

[14ZL1M6]

Originally Posted by Trackman

I wanted to buy Mast as well. Same thing. No answered calls or emails .
Terrible customer service.

I have heard this same statement from a lot of people!

[14ZL1M6]

Originally Posted by Smittty

Very happy.

Which port option did you go with? 270, 275 or 280?

[Smittty]

Originally Posted by 14ZL1M6

Which port option did you go with? 270, 275 or 280?

I went with 280.

[14ZL1M6]

Originally Posted by Smittty

I went with 280.

Ata boy....I dig it!!

[Smittty]

Originally Posted by 14ZL1M6

Ata boy....I dig it!!

Thanks. I'm digging the power the heads and cam make together.

[BrainleSS]

Richard Reyman @ WCCH will treat you right!

www.proheads.com