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I have been reading up on how to tune by reading the plugs lately, Its seems as though this is a learning process that takes some time and understanding to be able to be accurate. I have read quite a few posts by YR as well as RRR and the other experienced posters on this form... These plugs are...

Recently I acquired a 71 340 equipped with a hydraulic roller cam and Comp Cams retro fit juice rollers. One pair seems to be giving me some trouble with noise. I recently removed all the lifters and soaked them overnight in fresh mineral spirts/solvent. Using compressed air I blew them clean...

Any guess what the factory cast iron intake and TQ would be capable of supporting power wise? Lets assume a true 10.5:1 .030 340... Big valve "J" heads and a SFT camshaft... There is a 69 valiant here waiting for a 340 swap from a 72 swinger, the owner plans on making some upgrades but wants to...

How well do these heads flow in stock configuration? I scored a set today. I was thinking on using them on a 340 build with a solid roller.

Are the 273 Adjustable Iron rockers still sold new? I thought Crane made them new a few years back.. Woodie

Going to put this lil 340 in the 72 for the Summer. All redone and ready for fun, it came my way yesterday.. So I bit. :) 1973 340 .030 over. TRW forged pistons. 10.75:1cr ported X-Heads and the MP 508 hydralic shaftola. Combine that with M1 4.10 gears and the trusted 833 4-gear. Shold sizzle...

Thinking about doing a leak down check on one of my small block LA engines. If anyone with knowledge could chime in and give a proper procedure it would be appreciated. I think its time to refresh this mill.

I have a set of these Edelbrock heads uncut and looking to improve the flow on these without breaking the bank. What do these heads really flow otb?? Where would be a good starting point.. With so many opinions out there, please post them up.

Curious of the different stages or things that "Real Engine Builders" do to prep a block before starting the machining. I understand the sonic process for "core shift" in the casting. What about cleaning and blasting? Also what does "Baking" do? Thanks!

Thoughts on this cam for a 408. 4.10 gears 4-speed and lots of compression. 242/246 @.050 108 LSA. .602/.614 lift. I have the cam brand new. It was a freebee:)

How to determine what valve to use for a specific application. is there a formula? I am curious to know why there are so many different valves and how they spec them.

Anyone running one? Or have in the past? I have Flat Tappet solid lifter sitting on the shelf I am considering running in a 408 build. Advertised duration @ .050 is 260/271 lots of compression at 13.0:1

I recently picked up a 69 340-1 .30 over with flat-tops static compression of approx. 10.75:1 stock 69 "X" heads with minor porting work on the intake side and gasket matched to the intake. The intake is a Holley single plane "Strip Dominator" The cam shaft is Comp cams Flat tappet (20-618-5)...

A little info.. ..340 stroker (426) 10:00.1cr 32 degrees total advance @ 2800rpm. 904 Auto with 3500 stall. -850cfm Pro-Form with #76 mains & #84 out back (#45 PV) -Victor 340 intake with a 1 inch spacer. When the mill is up to temprature 185 degrees, and Not under load, its has a...

After a few sleepless nights spent in the garage I finaly got the mill in, and running. I still need to tune the carb a bit, and set the timming. I linked a short vid I took on my phone..... 340 Mopar stroker - YouTube

Here's the deal.... I pulled the intake off my 340 last week only to find the expected. #6 intake lobe was ground to a pulp! I pulled the heads off and then pulled the engine, turns out some "Bananna-Head" installed the valves with his eyes closed. The stem hights were all over the map. I sent...

Ok, I have decided it is time for me to ask for some opinions. I recently purchased my fist Mopar. The 340 has a lifter knock, I will be replacing the entire valve train in the next few weeks. There are a lot choices out there and I have spent many hours pouring through the "Search" function on...