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PY Online Forums - Bringing the Pontiac Hobby Together (https://forums.maxperformanceinc.com/forums/index.php)
-   THE LOBBY (https://forums.maxperformanceinc.com/forums/forumdisplay.php?f=467)
-   -   421 SD repo intake project (https://forums.maxperformanceinc.com/forums/showthread.php?t=856764)

tom s 02-19-2022 06:48 PM
421 SD repo intake project
 
I thought I would start a shorter thread for all the guys interested in buying a early and late style intake.
John came to my house today with a finished machined intake to test fit on my 62 389 engine.It was better than we would have even hoped for for the first machining sample.One issue we found is the casting did not allow for a blind threaded hole for the doughnut draw up bolt.That will be addressed in the casting.Another issue I forgot about is the second to the last intake bolt on the pass side(last bolt on late style)will need a threaded stud to get by the port and put a nut on.It will be furnished with every intake.The ports were better than any after market intake for matching.Will get good pics next time when we can put light in them.Pics to follow.Tom

tom s 02-19-2022 06:51 PM
5 Attachment(s)
Pics.Enjoy!

tom s 02-19-2022 06:53 PM
2 Attachment(s)
Couple more

slowbird 02-19-2022 11:31 PM
Awesome!!

sdbob 02-20-2022 07:46 AM
Very nice. Thank you all for all your work.

JSchmitz 02-20-2022 08:34 AM
"421 SD repo intake project" Repo? Didn't you pay for it? LOL How about repro? Just kidding!

Looks great! I keep trying to find a way to justify buying one.

61-63 02-20-2022 12:02 PM
Great Tom and John!

Skip Fix 02-20-2022 12:50 PM
Looks great!!

JSuchma 02-20-2022 01:48 PM
Looking good!!!! Thanks guys.

ANDYA 02-20-2022 05:14 PM
Fantastic progress! I can’t wait to see some of these manifolds showing up on cars. Tom, out of curiosity, how many manifolds are you planning to cast and is it a one time only run?

tom s 02-20-2022 06:05 PM
John has taken over the project,I believe he ordered 50 intakes.It will be up to him about the future.Tom

Skip Fix 02-20-2022 08:09 PM
Tom can you put a straight edge across the carb pads and measure down to the block at the valley pan lip front and rear and I can add it to the list here. Be interesting to compare it.

I'm still in for a late model head one!!

http://forums.maxperformanceinc.com/...=Intake+height

tom s 02-20-2022 08:32 PM
Next time I have it back in my hands I can.Tom

Pontiac Pete 63 02-20-2022 10:07 PM
Fantastic work guys. These are turning out great

Tom63LeMans 02-21-2022 12:19 AM
Fantastic job, Tom and John. Can't wait to get my hands on one.

beemergary 02-21-2022 03:00 PM
Quote:
Originally Posted by Skip Fix (Post 6320765)
Tom can you put a straight edge across the carb pads and measure down to the block at the valley pan lip front and rear and I can add it to the list here. Be interesting to compare it.

I'm still in for a late model head one!!

http://forums.maxperformanceinc.com/...=Intake+height
Curious to that info also Tom. Thanks

tom s 02-21-2022 03:42 PM
I cant do it on the car with carbs on.Have to wait to get my hands on the intake.

Skip Fix 02-21-2022 05:16 PM
No that would be too hard easier on just a motor.

tom s 02-21-2022 05:50 PM
OK,brainfart!I have the 3D printed intake here!Will get at the engine ASAP.Tom

tom s 02-21-2022 06:31 PM
3 Attachment(s)
Pics of early intake on a 62 389.


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