Question:
I hope someone can shed some light on a few questions.I had a 283 bottom end machined for rebuilding and the machine shop also rebuilt a set of 350 ( Cast no-3947041 / 64 cc Heads ) for me .I built the engine with new pistons rings and bearings.The engine then sat for about 5 years before firing as the hot rods taken a few years to build.Does anyone know the correct plugs for these heads as Ive been running the engine with NGK-BP5FS plugs ( The car is not licenced yet so the engine has only had the cam run in an then fired and run for a while on several occations when moving it)
The plugs are running a bit rich but every time I've removed the plugs there's been oil around the threads of the plug and a bit above.I've done a compression test and all cylinders have been between 153 psi & 158 psi I could be wrong but I'm wondering if the Guides were not reconditioned when rebuilt and oil is being let into the bores.Can anyone please shed some light on the problem.
is mitsubishi vehicles good? are they long lasting?
Nick
Answers:
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It may be that it's not broke in yet & is still leaking some oil past the rings.you need to put some miles on, depending on the ring you used they might not be fully seated,thats alot of compression check with your local race shop on that head and piston combo,should be a short reach plug though, heat range will vary with the timing and carb, you got alot af stuff going on at once
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Is your engine a 302?? ..... this is how chevy did it, they took a 283 block and put in a 327 crank. This gave the engine 302 displacement. Now if you have a 327 crank in there then you have a 302. As for the plugs I would go with Camaro plugs, and not NGK, NGK are the worst plugs made, get anything else..... NGK number would be......Spark Plug UR4IX NGK........here is a bosch number....Spark Plug HR9BPXIf I were to sell my 2005 Ford Five Hundred today, how much could I expect to get for it?
I had a 70' monte carlo with a 300 hp. 350ci. in it many years ago.I believe it had the "394" heads on it from the factory. Anyway the correct spark plugs for it are AC R44S gapped at .035in. with the stock "point type "ignition system. With electronic ignition go to .045in. Seems to me that a 30 over 283 comes out to a 289ci.Does any know how to turn-off the front airbag activation in Mazda 5?
You need to use high quality push on style seals like GM used on late generation 2 small-block. these work very well. I have had good luck installing this seal on both in and ex and leaving the O-ring seal off at the top of valve stem.only thing, you might have to machine the guide to accept this seal.Differences between '03 TL and TL-S?
To arrive at your displacement you will need to know the bore and the stroke of the engine...then enter those figures into this formula.....bore X bore X stroke X number of cylinders X .7854 = cubic inches.What would cause a peugeot 406 hdi steering to go very heavy as if pas was not working,but is ? .?
283 - 3.875 bore X 3.00 stroke283 - bored .060 = 292 CID
302 - 4.000 bore X 3.00 stroke
307 - 3.875 bore X 3.25 stroke
327 - 4.000 bore X 3.25 stroke
350 - 4.000 bore X 3.48 stroke
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For you to have 302 cid with a 283 crank you need a 327 small journal block.
The DZ302's were large journal steel cranks and made their power at 7000 rpm.
Your guides may have been ignored or may have been knurled.Usually guilds will make the motor puff blue smoke just on start up , then quit. I would not worry yet . Run it for 500 miles and see if its still a problem.
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It doesn't sound like there is a problem, but the only way to know is to run it for at least an hour or two to make sure its all worn in, and then see if you continue to have the oil problem, then worry about it, but for now i would say not to worry about itMore Questions & Answers ...
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