Combination for a peppy 340

[FlamesAreWicked]

Looks nice! Will your lifters come out with the heads on? I have the same lifters in a 273 and they will come out with the heads on. Some have reported that the Morels won't come out with aftermarket heads. No biggie either way, but try it if you don't have the intake on yet and you'll know if you ever decide to swap cams.

I don’t think I can with the Edelbrock heads but I’m sure something could be “engineered” to keep the lifters up so the cam can be pulled. I think the springs on these heads support .575 lift. So I can’t go a ton larger. Not to say they can’t be changed too.. this will be a fun hot rod and I can’t see wanting to go more.. but I’m sure we’ve all said that before lol

 

[jrc4y4]

It’ll be a fun combo for sure

 

[PROSTOCKTOM]

Most guys tend to over cam an engine, and as many others have already stated neither of those cams will be that much fun on the street with a 3.55 gear.

Also, you may or may not know, but the way a roller cam works it probably has the same effect as a hydraulic cam that's got 10 degrees more duration.

If you want a nice street grind, find a hydraulic roller that has 228/234 at .050"

Tom

 

[FlamesAreWicked]

Most guys tend to over cam an engine, and as many others have already stated neither of those cams will be that much fun on the street with a 3.55 gear.

Also, you may or may not know, but the way a roller cam works it probably has the same effect as a hydraulic cam that's got 10 degrees more duration.

If you want a nice street grind, find a hydraulic roller that has 228/234 at .050"

Tom

The cam that’s in this engine has that.. 227/235 @ .050

 

[Icetech]

Just a little update.. the 340 is nearly ready for me to drop in the Dart. We went ahead and opened it another .010 for a total of .040 over. KB243 pistons, Edelbrock 6017 heads, howards hydraulic roller cam with .525/.530 lift.. edel air gap intake. Harland Sharp rockers… the snowball effect definitely happened with this engine. I’m gonna use Doug’s D453 ceramic headers. I’m happy to report that the lifter bores were okay with the morel lifters and didn’t even need to grind the ribs in the valley for them to fit. Online calculators put the compression at 9.75ish static an around 8.47:1 dynamic with that camshaft.

Should make for a spicy ride with the 4spd and 3.55 gear… my clutch is just a McLoed street clutch but I’m runnin just a regular cooper rear tire so it’s gonna blow the tires fairly easy. It probably would be smart to step that up to the 500hp rated one for some insurance.

Here’s a few shots. I went by today and brought a 68-69 timing cover and balancer since my 68 Dart uses the iron water pump a the original cover was the later driver side timing mark version. Just have to finish assembly, measure for pushrods, freshen the orange paint job, and other small details..

View attachment 1716492039
View attachment 1716492038View attachment 1716492037

I run that cam in my 318 with 1.6 rockers and trick flows.. i have been pretty happy with it...
This is what it sounds like if interested (ignore the header leak, long fixed)

Should sound a little milder in your motor due to cubes though

Sound clip

 

[Icetech]

BTW.. heres a better one after i changed mufflers, first ones were too loud

Sound clip2

 

[FlamesAreWicked]

BTW.. heres a better one after i changed mufflers, first ones were too loud

I don’t see the clips popping up ?

 

[Icetech]

I don’t see the clips popping up

sorry, fixed....