Would LD340 mean LA Dodge 4 BBL specifically for the 340? LD4B = LA Dodge 4 BBL other than 340?? Just a guess.
The letter/number codes make sense until you talk to an Edelbrock guy. Then they say that isn't what we pout them on there for. ---- Ya! oOOO kAAAA.
I have both Edel. intakes. I'd describe them like this;
LD4B, Dual plane 4 bbl. intake for the smaller port heads. IE; 273/318.
LD340; Dual plane 4bbl. intake for the larger port heads. IE; 340/360
I would use them like this;
LD4B on the smaller 2 displacement engines from a general 4bbl. swap to a nice hi-performance but yet everyday streetable driver.
On the larger 2 displacements as a high torque intake. Very mild cam.
I think this intake would be good for a 350 hp engine. Not to much more. Somewhere around this area a intake change would be a bennifit on the street.
LD340;
On the smaller engines, a VERY high performance intake for a serious street machine.
On the larger engines, a general high performance intake that can pump out some good power.
My LD340 is modified as per the MP books Rx. Milled divider and opened up for the T-Q.
It's a real screamer.