Rare Possible Prototype M1 2-bbl Intake Manifold
A customer Keith dropped off an intake manifold in which the OEM fuel rails wouldn’t fit. I’d never seen this intake before. It looks like an M1 2-bbl but there are several differences:
1. It appears to have a Chrysler part number but ii is not designated with a “P” part number: 53031728AA
2. The arrangement of mounting bosses is different from the Mopar aftermarket 2-bbl.
3. The plenum is not as tall.
4. The intake ports at the flange are extremely square and accurate.
5. And most notably, the injector bungs are cast and machined at a 23-degree angle where the OEM and other aftermarket intakes (Airgap, M1 4-bbl, and M1 2-bbl) have a 13-degree angle.
6. There are other minor differences as well.
I wonder if this intake may have been a prototype that found its way out of the scrap heap back in the day?
To make fuel rails fit beneath the 52mm throttle body linkage without a spacer, I used the shorter Hemi 30# injectors, and sunk the injector ports further into the fuel rail. The 6AN fuel rails were also machined with 8AN ports for 8AN fittings. This intake was more of a challenge due to the extreme injector angle and short plenum.
https://i.imgur.com/2dLSlKJ.jpg
https://i.imgur.com/3hg7ML3.jpg
https://i.imgur.com/x8ktfNw.jpg
https://i.imgur.com/q428mZ5.jpg
https://i.imgur.com/4Tbvg9d.jpg
This is going in a Jeep with a 402 stroker:
https://i.imgur.com/piAYU8g.png
The engine was built by Godfather Racing in Fraser, Michigan.
https://i.imgur.com/rLuSr2l.png