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Very cool. Great info. Thanks.

I ran into a similar situation when I took my factory roller LA block to get the machine work done. We were discussing the build and he kept referencing how that like a sbc. After he hot tanked it, I picked up my block and went somewhere else. I could tell that he had never even touched an sbm.

I'd look at your timing again. Make sure you disconnect the vacuum advance.

I just want to clarify, the LA and magnum cams have different oiling needs, so it would be necessary to modify my oiling system to accomodate the magnum cam?

Hey guys I now this was asked already but I cant find the thread. I have a 1989 LA roller cam 360 motor. I have found a magnum roller cam that I like but I know they dont have the provisions for a mechanical fuel pump. Can I just run an electric fuel pump to solve the problem, or are there other...

Small block mounts. 340 to 340. And I believe it was a 70 or 71 cuda.

I just picked up a pair of motor mounts from a 340 cuda and wanted to know if they would work when I swap my 340 in the dart. I'm talking about the mounts that attach directly to the engine, not the rubber piece. Any help would be greatly appreciated.

Are they the same? I know the accessories intake and heads are different but what about stuff like the block and rotating assembly?

Some guy around here was advertising mopar K heads. They were supposed to be from a 340. Anyone ever heard of them? From the picture it sure looks like the have a K stamped on them. Sorry don't have the casting number.

Hey beans what size valves do those j heads have in them?

Is this for a power brake car? Because that game may have issues producing enough vacuum.

I will be getting my rotating assembly balanced for my 340. I have never done this before but need to do it because I will be using a 318 crank. I was just wondering what parts the machine shop needs to do it properly besides my crank, rods and pistons? Do I need my rings, balancer, and...

advertised Der: 279 296 @.05 227 241 lift .486 .473 lobe separation 107

I am in the process of putting together a 340 for my 1973 dodge dart sport on a college kid budget. Its intended to be my daily driver and not a show or 10 second drag car. I just know all you guys like to give your opinions and I'm just looking for some constructive criticism, I just want...

Thanks IQ52

This isn't a question of valves it is a question of flow/ All things being equal which one flows the best and creates the best compression.

Hey guys I just picked up a late LA style roller 360 short block for my dart. I was reading in the book called how to hot rod a small block mopar and it said that on the roller cam engines I cannot use early 318 heads because the push rod holes are not the enlarged style. My question is, can I...

Thanks guys. Keep the opinions coming.

Hey Y'all I'm putting a 360 together for my dart and just doing basic bolt on upgrades. The problem is that I have four sets of heads all about in the same condition, so which set should I build? Just looking for best bang for buck. Option 1: casting number 3671587 which says that they are...

I notice the plenum is higher on the rpm. Is the added performance worth the shorter hood clearance. Engine is going in a mini truck so clearance will be an issue. I'm just not sure if cutting the hood for the rpm is even worth it.

Hey guys I was just wondering if there was a real difference between the eddy performer intakes and the RPM version. And no I'm not talking about the air gap. We all know that one rules. I'd just be curious if there is much of a difference in hp and tq gains between the two. I see that the rpm...

I had a similar issue with my dart and it turned out to be a blown head gasket.

My block is 40 over. Where does everyone suggest getting pistons? I am just looking for a decent priced set of flat tops.

Greeting everyone. I have acquired a bare 340 block pretty recently. I have never assembled a short block before so I need some help. I have been doing some research on cranks and I noticed that there seems to be a difference in early year and later 340 cranks. Is it just the material? Or are...

Greetings everybody, I just bought a bare 340 block for a reasonable price. Currently I am a full time college student and working two jobs. I am looking for some suggestiongs of where to go with this build. It is going to go in my 73 dart sport that currently has a 318. I am not really sure...

Got a 73 Dart with a 318. When I am at part throttle I get a lurching poping back fire effect. When i unplug the vacuum advance it goes away. what is the deal? Anything helps. Have tried timing and carb tuning multiple times. Its a hol 600 carb and rebuilt distributor.