Canceling Edelbrock RPM Order Intake Suggestions

[390rpm]

I ordered an Edelbrock Performer RPM intake and carb package 61 days ago today. This afternoon I finally received a reason for the delay. I was told, "..due to an intake machine malfunction we have no eta on your parts... we guess they'll be there in another six to eight weeks". I suppose stuff happens, so I guess I'll cancel the order and go with a Blue Thunder or a Streetmaster. Unless if I find someone who has a RPM intake stocked.

-- I think I'm leaning toward the Blue Thunder 427 MR intake. I found a 428 CJ HR listed, but I assume there would be a port mismatch with the 6090-N heads. I'm still new to the FE. I'll appreciate any suggestions.

401 cubic inches, 10.07:1, CJ heads (SS valves-3 angle valve job- light porting with bowl blend), Comp Cams springs, RPM cam and chain, Harland Sharp Roller rockers, Precision Oil Pumps end stands

[1968galaxie]

The Blue Thunder FE intake is a nice piece.
I believe the Blue Thunder CJ intake has slightly taller intake port - should match quite well with a 428CJ head.
The MR intake has slightly shorter port - but may be wider than CJ manifold port size.
Some others may have port exit dimensions for the 2 manifolds.

[390rpm]

Survival Motorsports has a 428 CJ High Rise listed (also a Comp. 428 CJ High Rise listed, but not sure what the difference is). I believe that the stock CJ head is a medium riser port. I wasn't sure if the taller high riser port of the 428 intake would be a problem, so that's what had me thinking the 427 MR intake would have better alignment.

Could/Should you raise the ceiling of the head port to match the high rise port of the intake?

[chilly460]

Just to confuse everything, a CJ port actually is a Low Riser port. 

[390rpm]

Haha, I'll measure them. That should clear things up.

[427John]

Is the survival intake being advertised as a HR like in highrise intake manifold as all performance aftermarket intakes used to be referred as or as an actual HR 427 type port?

[Royce]

I don't normally do this but since you are looking

https://www.facebook.com/marketplace/item/879811746216527/

[1968galaxie]

The Blue Thunder manifolds are not the High Riser 427 port.
The 427 MR port is slightly shorter (perhaps wider?) than the 428 CJ port manifold.
I had a Blue Thunder 428CJ manifold. It matched up quite well to C4 cylinder heads ("low riser") I was using.

[390rpm]

Is the survival intake being advertised as a HR like in highrise intake manifold as all performance aftermarket intakes used to be referred as or as an actual HR 427 type port?

I'm probably mistaken, but the intakes are advertised as high risers. There wasn't too much information other than that. I'm sure most people who are considering them already know the lingo. Here is the link below.

http://store.survivalmotorsports.com/blue-thunder-search-by-product-intake-manifold-ford-big-block-fe-390-427-428.html

[390rpm]

The Blue Thunder manifolds are not the High Riser 427 port.
The 427 MR port is slightly shorter (perhaps wider?) than the 428 CJ port manifold.
I had a Blue Thunder 428CJ manifold. It matched up quite well to C4 cylinder heads ("low riser") I was using.

Thanks. I've always heard them referred to as just Blue Thunder intakes. The listing advertised them as high and medium risers. I never considered that there were other variations of that design. It makes sense though. I think either the 427 or 428 BT intake should work. I believe the difference is in the port match.

[67xr7cat]

A high riser intake manifold will only work with Hi riser heads.  Ford raised the valve cover rail on the Hi riser so it is not just the port height.  A MR looks like a Lo riser port just with the port floor filled in.  Some MR intakes, mostly early factory stuff will not seal properly at the port bottom because of this.  Right now seems a lot of stuff is out of stock.  Edelbrock moved its corporate office and it seems to have disrupted everything. Edelbrock cast a of other peoples stuff in addition to their own.  I'd say if you can wait a few months should be available again.  As for the Blue thunder stuff, they do a run and sell it to the vendors.  A lot of times it all gets sold off long before they do another run so is very hit or miss.

[chilly460]

Is the survival intake being advertised as a HR like in highrise intake manifold as all performance aftermarket intakes used to be referred as or as an actual HR 427 type port?

I'm probably mistaken, but the intakes are advertised as high risers. There wasn't too much information other than that. I'm sure most people who are considering them already know the lingo. Here is the link below.

http://store.survivalmotorsports.com/blue-thunder-search-by-product-intake-manifold-ford-big-block-fe-390-427-428.html

I think it’s semantics, they’re listed as “high rise” not high riser.   It means the carb pad is raised, they’re a “performance” intake as opposed to a stock replacement like an Edelbrock Performer. 

[CV355]

What is with every manufacturer out there suddenly having supply chain and internal manufacturing issues?  I swear, everyone out there just throws the "Unexpected delays due to Covid" label on everything. Sorry for the rant, I've been waiting 12 weeks for something that was supposedly "in stock" and I was given the "Covid delays at supplier" line. 

[machoneman]

What is with every manufacturer out there suddenly having supply chain and internal manufacturing issues?  I swear, everyone out there just throws the "Unexpected delays due to Covid" label on everything. Sorry for the rant, I've been waiting 12 weeks for something that was supposedly "in stock" and I was given the "Covid delays at supplier" line.

Having the same delay issues with rocker arms. Many are the reasons why and almost all are valid. Workers who were hospitalized and can't or haven't returned to work, they died, supply of all metals quite short, interruptions in the supply chain for even tooling used to cut, form, stamp metal.....I could go on but lumber and used cars weren't the only now high priced in short supply items.

Here's another kicker: Cost of goods sold. If i were still in manufacturing (40+ years here, most in high level management) I'd be wary of what my plant's expected current and near-future costs will be. If my intake was priced at retail at $400 before COVID-19, I'd be damned stupid to keep that price today, 6-10-21, without even knowing how high raw aluminum will now cost me when it's in short supply.

Short answer: expect rapid and high price increases for the foreseeable future on lots of car parts.     

[WerbyFord]

I ordered an Edelbrock Performer RPM intake and carb package 61 days ago today. This afternoon I finally received a reason for the delay. I was told, "..due to an intake machine malfunction we have no eta on your parts... we guess they'll be there in another six to eight weeks". I suppose stuff happens, so I guess I'll cancel the order and go with a Blue Thunder or a Streetmaster. Unless if I find someone who has a RPM intake stocked.

-- I think I'm leaning toward the Blue Thunder 427 MR intake. I found a 428 CJ HR listed, but I assume there would be a port mismatch with the 6090-N heads. I'm still new to the FE. I'll appreciate any suggestions.

401 cubic inches, 10.07:1, CJ heads (SS valves-3 angle valve job- light porting with bowl blend), Comp Cams springs, RPM cam and chain, Harland Sharp Roller rockers, Precision Oil Pumps end stands

What car / trans / converter / rear is it going in?

Still interested in an Ed RPM intake?