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Cool. Had no idea. Thanks :)

That gasket calls for a 4.180 bore, mine is only 4.070.

Thanks guys. I was doing a bit of research. I've come across SK speed for my rebuild. They're located in long island ny and he seems incredibly knowledgable which is a bit if a relief. He also suggested against kb Pistons. Suggested either TRW forged or Ross pistons. I'm sure a bit on the heavy...

Any reason for a 1.6 rocker arm? With my setup along with the heads, do you think I'll be restricting and running lean? Reason I ask for this is cause I want to use a 650 carb and edelbrock rpm dual manifold and 3k stall converter. Thanks again

Forgot to mention that. Any reason for a 1.6? I read that RHS dosent accept stck type valvetrain. Recommend any kits?

What's your highest compression ratio without any use of methonal or any cooler. With a somwhat aggressive cam and 10:1, think it'll be fine on 93 octane?

60403 Details Voodoo™; Camshaft; Hyd.Flat Tappet; RPM 1800-6200; Adv. Dur. 268 Int./276 Exh.; Valve Lift .494 Int./.513 Exh.; Lobe Angle 110 Deg.; if you can give any input that'd be great.

I was looking for cylinder heads upon my 68' 340 rebuild. Are the comp cam beehive springs durable enough for a lunati 60403 cam? Are these bronze valve guides? Regardless price looks great.

Very cool. Thanks! I really don't trust summit when it comes to ordering parts since some of the parts listed for a specific application never matches. When it comes to main bearings, it's prob best to wait it out till the machine shops inspects it? There are .010 and .020. Versions.

I've heard great things about you so I will take your advice into consideration, not to take anything from anyone on this board. You guys have been so helpful. So far this is my setup. Kb hypereutectics pistons(4.070 bore)with 4340 rods, refurbish crank. Rebuild the x heads with stainless...

I noticed that too, they're rated at 50hp difference. Is the scat rod superior?

I still have to do my research, but I'm going to stay with the stock heads( no milling nor porting the chamber. Stock cc, although I'm not sure what it is. Obviously it'll be reconditioned. It's a stock 340 from a 68' barricuda, so it must be a "j" head?

I was looking at Mancini website and they're 2 different forged pistons from sealed power. One is: http://chucker54.stores.yahoo.net/340comdis18s.html other is: http://chucker54.stores.yahoo.net/340comdis18s1.html it's a $100.00 difference. Is it worth it? Dosent state if either are...

Thanks. As far as rods bolts go they say APR 8740 wave Lok ™ 3/8" rod bolts (190,000 psi) APR? Or ARP?

Any recommendation on forged pistons?

Reconditioning the rods will prob cost half of lightweight forged units may cost. I guess you could say that I'm going for the cost effective approach. What do stock rods usually weight? Eagle has a set which is basically the same but with 618g weight and runs $295.00.

Def stock stroke with .030 overbore. I prefer forged pistons since I'm extremely happy with my speedpro on my sbc. If there's another brand that works well with the mopar crowd please let me know. I want to recondition the stock crank and maybe cut some weight off of it.

I'm in the process of purchasing some bottom end parts for a 340 rebuild. What are your thought on scat I beam rods weighing in at 595 grams? They're forged 4340 and new. Running just above the $300. Good investment? Cruiser/ weekend strip

Is this a vacuum advance distributor? What's your total timing?

Awesome, thanks guys :)

Short stroke big bore?

Excellent information. Thank you for being patient. I will certainly take this up very soon. Looks like I'll keep the heads and have them install new valves, seats, seals and work in dual valvesprings. Should I stay with stock intake/exhaust diameters? Probably won't port. I'm guessing rod...

The replies are phenominal! Thank you all so much. I had no idea Chrysler motors were high rpm motors. I'm no stranger to forged eternals. I had a forged aluminum piston/rod set up on a sbc and it holds extremely well. I'd like to keep and refurbish the crank, everything else is a go. Don't mind...

Good point. It will be a street car, however I'd like to keep up with stangs. I streetable 350-400hp(not rwhp). The 904 has been rebuilt with heavy duty kit. 3.55 rear gears. I'm guessing these motors are best by idle and 5500rpm? Converters and brands are welcome too!

How much horsepower will the stock heads support? Are they called anything in particular(ie. J heads, magnum etc)

As of now I plan to ride it till late summer then send it off for paint and work on the 340 in the garage. It's an original 340 from a 68' barricuda. It has good compression in all cylinders and head gaskets appear to be good. Aside from valve seats anything else? If anyone would like to throw...

Update. Added self threaded screws to both the ballast and ignition ECU. Both properly grounded and she started right up. :D we thank you all!

Like a sbc? :lol: thanks

On a 1968 340. Very mild cam and mopar electronic ignition. What's the timing for idle and advanced? Thanks

Thanks dude. Is the lift high enough that I need to replace the springs?