Just want to confirm real fast
09-10-2009, 06:53 PM
#1
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Just want to confirm real fast i know there are a bajillion threads on this, but just to check --- my friend ordered some accel 566 u-groove plugs for his 454, but they shipped him small block plugs so he gave em to me. they're gapped at .035 already. can i pop em in as is? or should i re-gap to .045 or .050?
09-10-2009, 09:04 PM
#4
Depends on their heat range. Stock gap is .050", but .035" is better in performance applications.
Because plugs are inexpensive though, I wouldn't put in an unproven plug. Just go to the store and pick up some TR55s. No need to guess, especially since changing plugs is a pain in the *** and you probably only want to do it once.
Because plugs are inexpensive though, I wouldn't put in an unproven plug. Just go to the store and pick up some TR55s. No need to guess, especially since changing plugs is a pain in the *** and you probably only want to do it once.
09-10-2009, 09:40 PM
#5
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Who install plugs without checking the gaps? 
You can gap them to anything you want. Personally, I would just get some plugs meant for your engine like has been suggested.
You can gap them to anything you want. Personally, I would just get some plugs meant for your engine like has been suggested.
09-10-2009, 10:50 PM
#6
Well from what I know big blocks use a spark plug with a gasket seal around the base of the threads and small block don't. Also the reach on a typical BBC plug is .750 some small blocks use .690. If you lucked out with a plug that works i would still regap depending on your compression ratio, stock (10.2-10.5) would be good to gap at .035. I've had a hell of a time dealing with spark plugs on the stock motor with all the same ignition upgrades as you and .035 worked the best.
09-11-2009, 07:46 PM
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I have TR55's in there now. and actually ii've done my plugs about 3 times now, so i'm over the "oh man i gotta do plugs" feelings..its not too bad...i guess i'll leave these at .035 and pop em in tomorrow. I'll let u guys know how it runs
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09-12-2009, 12:12 PM
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b/c the accel were free..i just wanted to see if i could use them..no big deal..
neways, i started to put them in last night and they were about 1/8" too short threads...soo i just put another set of TR55s in there. thx for the help in this one..least i didnt spend any money on em
neways, i started to put them in last night and they were about 1/8" too short threads...soo i just put another set of TR55s in there. thx for the help in this one..least i didnt spend any money on em