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I have the engine out to check the crank and I am going to address a few other small problems while I am at it. One is I have 3 exhaust bolt holes that need to be helicoiled. They still have threads way in but out near the header flange somebody stripped the threads. I want to have proper header...

I am starting a new thread here in the small block forum. My lack of oil pressure has me at my wits end. I built this engine from scratch other than the machine work. Here is what I have checked so far. All oil galley plugs are present and accounted for at the rear of the engine. I have...

Engine is a 68 340 that was completely torn down and sent to machine shop for prepping. It was baked and then had the works done to it. My problem came about when I went to prime the oil system. No oil pressure and no oil to the upper end. There is oil getting to the filter so I know the pump...

My new blower manifold does not have a coolant bypass outlet. I am going to delete the heater so my question is: Can I safely run a piece of hose from one hose bib on the water pump to the other? Jack

I just picked up a new intake for my blower engine. When I went to put it on I had the gaskets in place but the bolt holes didn't line up with the holes in the heads. I pulled out the gaskets and set it in place and was able to get the bolts started. Just barely but they did go in. I know this...

Has anybody ever used these valve covers from KMJ? They are on ebay and look like they could be a decent deal if you want the look. I do. LOL...

Would somebody please figure out my static compression ratio. I have tried 3 different calculators and got 3 different answers. 340 +.030 = 4.07 X heads (should be around 72 cc's) TRW L2385 pistons (these have 4 valve reliefs) stroke 3.31 pistons are .070 in the hole gasket, use a .039...

I am building up my 340 and I am going to use a 318 steel crank in it. I already have the rotating assembly balanced so that is not an issue. What I am wondering is, I see main bearings for 318's and I see bearings for 340's listed separately. What is the difference in them? I thought that...

I am looking at ordering a roller cam and springs. I want to give the manufacturer as much info as I can. So I need to know the following. These numbers should be what the factory put in. I am pretty sure on a couple of them, but would like conformation. Also, how much pressure can stock...

I am going to a solid roller cam in my next 340 build, blower engine with 6 to 10 lbs of boost. The cam won't be anything to radical, probably around 230 @ .500 and .500 to .525 lift. What I am wondering is if these springs would be a good choice if I can get them cheap, cheap, cheap...

I have looked all over the net for this and can't find any info. What is the difference between a hydraulic roller and a solid roller? Can they be inter-changed? Use solid roller lifters on a hydraulic roller cam or vice-versa? Just trying to get my head around these things. Jack

I have a set of X-heads that I am going to use in the future. The chambers have some minor pitting and I would like to clean them up. What is an acceptable way for the home do-it-yourselfer to get them smooth again? Jack

I am going to be switching from a solid flat tappet cam to a roller setup in the blower engine I am building. I believe the current springs to be rated to .500 lift. Is there a difference in the springs required when you switch to a roller cam? Jack

I just found out that the crank in my 360 is toast. The balancer bolt backed out last August, the balancer came off and damaged the snout of the crank. My question is. What kind of cast crank would you buy and where? Horsepower is a little better than 400 at the crank. Jack

I have small blocks so I figured I might as well ask this question here. We all know that our engines came from the factory with the rotating assembly just bolted together. No special balancing. My question is. Under what conditions is it required to get the rotating assembly balanced? ie...

I recently had the harmonic balancer come of my 360 while it was running. There was no real damage visible so I decided to put it back together last night. When I put the balancer on it was not a tight fit ie: I didn't have to press it on. It just went on with the pressure from my hand. It does...

Would a set of Comp Cams 843-16 solid roller lifters work in a 340 block? Jack

The video quality is not great because it was from 4 years ago and I was still low tech then. Come to think of it I am still low tech. LOL Jack http://s450.photobucket.com/albums/qq221/coyotejacks/Demon%20startup/?action=view&current=STARTUP.mp4

I am on the trail of a 340 block that has on of the lifter bores broken. Can it be welded and bushed in any way to make it usable? No, I have no idea how it got broken but there is a chunk of it gone. Jack

What do you guy's think of the prices in this ad? Has anybody ever dealt with this outfit? http://www.racingjunk.com/category/1291/Pistons/post/2004176/New-Forged-Piston-Sets-All-Sizes-2618-4032-.html Jack

The wife and I went out for a cruise today. Not 10 minutes out the engine started popping and I was down on power. I limped home as it was not to far away. There was a lot of noise out of the drivers side valve train. I pulled the valve cover and found a roller rocker sideways, a bent push rod...

I can pick up a 4.7L that has some issues with water getting into the crankcase due to a blown head gasket for free. What are the differences between a 2002 4.7 and a 1998 5.2? The engine still runs with good oil pressure but has a nasty ticking coming from one of the tappets. Jack

I know some of you racers and engine builders would know this. What all would have to be done to convert to alcohol or can I even do it? I presently run 10.58 to 1 compression with magnum heads. Jack

I have a little better than 10.5 to 1 compression with my LA/Magnum hybred. I don't have any pinging with 16 init and 34 total timing running 91 octane. What I am wondering is, what effect would running 100 or even 112 octane race gas have on power? I'm not worried about fuel milage as the...

I have a 98 Ram 1500 4x4 with a 5.2L (318). Sometimes when I am driving very slow the engine stumbles badly. If I let off the gas it will idle so/so but if I give the gas a pump or two it excellerates like normal. I have also noticed a couple of times that when I am coming to a stop the engine...

I have just installed my new roller rocker system in the magnum headed 360. Although all of the pushrods are close to the head casting. One is touching the casting. I am wondering if it is safe to grind a little of the head casting off to let the pushrod clear the head? This would be the...

Has anybody got the torque sequence for magnum heads? If you do would you please email them to me at [email protected] Thanks Jack

I got the 360 apart today. I lucked out. After wiping 2 cams I couldn't find any damage to the mains or connecting rod bearings. There was one minor scratch on one cylinder wall. I'm not going to worry about it as I have seen worse in perfectly good engines. The scratch was only about 2 inches...

For those of you that don't know the whole story. I have a rebuilt 360 with magnum heads. This engine only saw dyno time before I bought it. It sat for 2 years before I installed it. Upon my initial startup everything sounded good, after I installed my exhaust I could hear very loud rocker...

I got the MP 284/484 cam in tonight. I used Rotella-T, GM EOS and a new filter. I started it up and had it pegged at about 2300 rpm. I would hit the throttle up to 4000 every couple of minutes and back it off after 5 seconds. After 13 minutes my temp went to 230 and I had to shut it down. It...