Author Topic: porting a 12hp block (Read 16189 times)

mowcephus · « **on:** February 14, 2006, 09:21:53 pm »

How much porting do ya'll do to a 28 or 12hp block on the intake side?

tory · « **Reply #1 on:** February 16, 2006, 06:59:21 pm »

On the intake side youre basiclly just cleaning up the poor factory porting.But the moter 101 tape from Don Gienger at G-TEAM will go over all of that and is well worth the investment. TB

George Herrin · « **Reply #2 on:** February 16, 2006, 07:20:04 pm »

Well like stated earlier you basically clean all rough edges without enlarging the port. The exhaust side the same also but i reduce it. And I cannot divulge that secret.

mowcephus · « **Reply #3 on:** February 16, 2006, 08:19:03 pm »

I think I may already know that secret from before

. I hope I'm thinking right

. I didn't know if one was to port it out big or just clean it up.

George Herrin · « **Reply #4 on:** February 16, 2006, 10:47:17 pm »

Yup you should be thinking right. :wink:

Mowerorless · « **Reply #5 on:** February 17, 2006, 03:08:15 am »

Sounds like a job for J-B Weld.....

George Herrin · « **Reply #6 on:** February 17, 2006, 09:10:22 am »

No not in the exhaust port. Think hard how would you get rid of the threads without grinding yet smooth when done then simply do your port work and you are finished.

Squidd · « **Reply #7 on:** February 17, 2006, 01:08:34 pm »

Sounds like a pipe nipple...but I didn't say that....

George Herrin · « **Reply #8 on:** February 17, 2006, 02:20:13 pm »

Now we are on the right track.

mowcephus · « **Reply #9 on:** February 17, 2006, 08:06:09 pm »

uh oh that secret didn't last long George and I didn't tell :?

Squidd · « **Reply #10 on:** February 17, 2006, 09:07:41 pm »

Quote from: "Squidd"

...but I didn't say that....

Me either... :shock:

George Herrin · « **Reply #11 on:** February 18, 2006, 02:17:47 am »

Me either. DID I!!!! :twisted:

mowmanscott · « **Reply #12 on:** February 18, 2006, 08:11:30 am »

ok now Im confused could some one fill me in on how to do this? :? Scott

Squidd · « **Reply #13 on:** February 18, 2006, 08:12:56 am »

It's a secret.... :wink:

mowmanscott · « **Reply #14 on:** February 18, 2006, 08:15:07 am »

Come on I live in New York. PM me

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Author Topic: porting a 12hp block (Read 16189 times)