Mod man W-2 ported for 360-1 rectangle port

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scotty1966

scotty1966

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Has anyone here turned the Indy mod man W2 into a rectangle port for the 360-1 heads ?
I called Indy and She said I could turn it into a rectangle port to match my heads for my blower set up .
I am kind of skeptic since I have not seen it done .
I would hate to buy one for no reason .
I wish they would make a Dedicated blower manifold for those heads .
Let me know . Thanks
 
scotty1966 said:
Has anyone here turned the Indy mod man W2 into a rectangle port for the 360-1 heads ?
I called Indy and She said I could turn it into a rectangle port to match my heads for my blower set up .
I am kind of skeptic since I have not seen it done .
I would hate to buy one for no reason .
I wish they would make a Dedicated blower manifold for those heads .
Let me know . Thanks
Click to expand...

the guy who owns Valley Performance and machine( Jack Barna) Ionia, Mi converted a W2 tunnel ram to fit Edelbrock Victor heads on a 360 build he won an engine competition with. Had a good bit of time in it

Valley Performance and Machine Service’s 376 cid Mopar Engine
 
I thought the mod man intake flowed like taking a crap thru a straw? Or was it fuel distribution?

If there is enough material it could be done. Or some welding and porting work.

Anyone have a picture of the flanges and runners?
 
dodgedifferent2 said:
I thought the mod man intake flowed like taking a crap thru a straw? Or was it fuel distribution?

If there is enough material it could be done. Or some welding and porting work.

Anyone have a picture of the flanges and runners?
Click to expand...
No pic’s. The Ultra short runners are an issue, shorter runners tune at a higher the rpm. There so short, they create a huge plenum that requires a massive pump shot. The short height can have the fuel crashing down on the floor. These 3 things can be a tuning problem.
 
The OP is running boost so this manifold will flow fine.
There is no pop off valve and the distributor clearance is problematic with Indy’s blower top….
A “Reverse Offset” 8-71blower will have the added 1” blower case to the front of the engine, aiding in distributor clearance…..
Indy does have a $900 offset distributor to accommodate for their shitty designed blower top.. lol
675A3C5D-392B-4936-A764-2A191FA1744B.jpeg


However, @Coyote Jack modified his ModMan blower top by moving it forward to provide distributor clearance.
 
MiradaMegaCab said:
The OP is running boost so this manifold will flow fine.
There is no pop off valve and the distributor clearance is problematic with Indy’s blower top….
A “Reverse Offset” 8-71blower will have the added 1” blower case to the front of the engine, aiding in distributor clearance…..
Indy does have a $900 offset distributor to accommodate for their shitty designed blower top.. lolView attachment 1715913923

However, @Coyote Jack modified his ModMan blower top by moving it forward to provide distributor clearance.
Click to expand...
I thought He removed the excess flange material protruding from the back of the manifold and reworked some of the blower rear bearing plate fins to clear the distributor . I messaged him awhile back about it . No offset distributor needed .
I will use a 2" blower spacer or taller to clear the distributor for my 8-71. I have a call into a Friend who is a Indy dealer and he will talk to the one person who will know the answer without any guessing . So, in the meantime I will be waiting for a phone call .. If the manifold has enough material to change the port I will get it and modify as necessary . I have a nice Tig welder ,and I don't mind doing some fabricating and mods.
 
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dodgedifferent2 said:
I thought the mod man intake flowed like taking a crap thru a straw? Or was it fuel distribution?

If there is enough material it could be done. Or some welding and porting work.

Anyone have a picture of the flanges and runners?
Click to expand...
I am running a Blower so it won't matter . If you look at a Blower manifold for a 440 from Bds ,it is a open tented plenum kind of like the mod man . I would not consider one for a naturally aspirated application .
 
scotty1966 said:
I thought He removed the excess flange material protruding from the back of the manifold and reworked some of the blower rear bearing plate fins to clear the distributor . I messaged him awhile back about it . No offset distributor needed .
I will use a 2" blower spacer or taller to clear the distributor for my 8-71. I have a call into a Friend who is a Indy dealer and he will talk to the one person who will know the answer without any guessing . So, in the meantime I will be waiting for a phone call .. If the manifold has enough material to change the port I will get it and modify as necessary . I have a nice Tig welder ,and I don't mind doing some fabricating and mods.
Click to expand...

Right you are Scotty. If I had it to do over I would probably do a combination of what I did and what you are planning. I would still remove the extra material at the back of the mounting plate and I would also add a 2 inch spacer. I believe you would be better off in the long run that way.

Jack
 
Coyote Jack said:
Right you are Scotty. If I had it to do over I would probably do a combination of what I did and what you are planning. I would still remove the extra material at the back of the mounting plate and I would also add a 2 inch spacer. I believe you would be better off in the long run that way.

Jack
Click to expand...
Right On ! :thumbsup:Thanks
 
I found out that I can Mod the W2 Mod Man manifold for the 360-1 heads . W2 Mod mad port measures 1.390 x 2.100 . 360-1 Head port size is 1.350 x 2.160 , so it is Feasible to do . 060 is not that much to equal out . I will have to narrow the w2 port to match by either Good Epoxy or just tig some material in and blend . Not looking to widen the ports all the way up the runners . I will just blend them equally..
 
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