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Hello, If you switch to a hyd. cam and hydraulic roller lifters, do you need to switch the rocker arms? Thanks

Hello. My torture continues. Got just about done with my 68 barracuda build. I bought a rebuilt 340 about a year and a half ago on here I primed it. Used high zinc break in oil never revved it up very high. Drove it in total just about 75 or 80 miles. Just drove it to get exhaust done , an...

Got a 69 340 with stock damper with timing mark, and the built in stock little timing mark gauge on the timing cover. It has 10* each side of 0 TDC. Dumb question, is left of TDC Before TDC or is Right of TDC Before? Clockwise retard, Counter Advance correct. Thanks

Discovered new problem. When I drive my newly rebuilt 68 barracuda with a 340, I noticed I have 2 pools of oil on the intake manifold towards the back on both sides. I also have had a little oil on my plugs. Could this just be valve cover gaskets or intake issue? Thanks

Drove my barracuda to get exhaust today and in a 8 mile round trip when I pulled in my drive my engine temp was 215. After shutting it off(I have the Sniper EFI) my radiator overflow line drained a bunch of coolant (about a 70 water to 30 collant with wetter mix) I noticed that the coolant on...

Installing Sniper EFI on my 68 barracuda with 340 and Stock 340 manifold. The temp. sensor hole up by the heater hose and thermostat, is very very small. the temp sensor for the sniper is a lot bigger. The manifold has a hole that is plugged that is behind the carb and in front of the...

Got a new priming rod from summit and I want to prime my 340. Couple questions, when I pull my distributor gear out, do I need to make sure it goes back in any certain way? Also, are they hard to get out? Any little tricks? I was going to just bend some 18 gauge steel into L shapes and pull it...

Completely took apart my 1968 plymouth barracuda convertible. Took out dash and all the cluster and gauges. When it came back from the body shop this was on driver side floor board. Have no clue what it goes to I am guessing something under the dash, possibly something to do with E-brake, i...

My manual says the flexplate to torque converter bolts should be torqued at 270 inch lbs. or 23 foot pounds, seems kind of light? 68 318 with 904

Was wondering, are the exhaust manifolds gaskets for a small block, the same for a 69 340 with the HP exhaust manifolds ? any recommendations Thanks

Hello, about to loose my mind here. got a 68 barracuda that had a 318, now putting in a 69 340. Just assumed schumacher 318 to 340 conversion kits would be everywhere like they were 13 or 14 years ago when I did this before. Got rid of my motor mounts and brackets and now can't find just some...

Having trouble finding anyone with 318 to 340 engine mount swaps. Anyone have any or where can I find them ? Thanks

Was wondering if anyone had experience with this, can you you install like a FItech Fi system on a stock manifold? Like a 340 iron manifold thanks

Hello all. Thinking about buying one of those ATK shortblock 408's. They are internally balanced which I think means I can just use just my stock 318 flex plate and a regular small block balancer. (I think) It's just the short block, so I was going to buy some Magnum heads and throw on. Does...

ok found out the 408 I am looking at is a Magnum block. What exactly would I need to do to use my 904 transmission to make this conversion. It is a externally balanced engine. Thanks PS this 904 is from my 68 barracuda with a 318 Thanks

hello, was thinking about getting a 408 (stroked 360) for my barracuda. If I want to use my original 904 that was behind my 318 and If the 408 is externally balanced, do I need to just get the special B and M flex plate(ext. balanced) and thats it or do I need to get a certain harmonic...

Has anyone ever done this? My ports on my 920 heads are way bigger then a set of 675 heads I have. Thanks

What does everyone think of the Federal Mogul 428p pistons in a 71 340. Don't know much about them except I think they are cast and have a comp. height of 1.829 which is less than stock. Any info would be great, Thanks.

Tell me what would does everyone prefer behind a 318, the 3.23 or 3.55? Is there much of a difference? which would make the little small block seem quicker? any thought?

anyone know what the weights are for 318 273 340 cranks cast and forged. Thanks

Can a 273 crank or even 318 be used in a 340, Thanks

Does anybody know what the flow numbers are on the 67 920 heads and the 302 heads. Runner difference, Combustion Chamber volume etc. Thanks

I thought I have read that some 1967 273's with the 920 head have 1.88 valves. Is this true, Thanks.

Hello all, wanting to put new pistons in a 68 318. I noticed the KB 167 pistons weight 526g and the stock pistons weight 592g. Does this mean I need to have some material removed off the crank for balancing once I install the new pistons? What does this apprx. cost at a machine shop thanks.

Does anybody know if there is any way to check the Orange box ECU's. I just got this one, but it sure is acting like it is a bad ECU...

Here we go, All right 2 or 3 weeks ago, I had no fire in my 67 barracuda 340 with mopar hi-po elec. ign. We did several checks and decided it was the orange box. (been through 2 in the last 3 or 4 years) Replaced it and it fired right up. Went to go for cruise a couple of days after getting it...

What plugs would you run in a 71 340 streeter, that are reasonable?

Well here we go, just put new ECU box in last week and car started right up. After driving it shortly, realized it had a pretty good miss in it. While problem shooting for the ECU box, noticed that my coil was wired backwards(neg on pos and pos on neg) switched it around and went for a drive...

Any ideas why my 340 is running like crap after it runs on the hiway for a while? Motor is only running about 175 degrees, no stalling at stops issues any more. Any ideas? Thanks

Okay guys', what do you think? I have a 67 Barracuda with a 340. (I have previous posts on subject) When I drive may car, It does great on hiway and around town when it first starts. When I go through some traffic and after it is driven a little and warmed up, it wants to stall at lights or stop...