what plugs do I need?

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Sep 18, 2010 | 04:18 PM

BigD383lt1

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From: Dunedin, Florida

what plugs do I need?

I have a set of AFR 210 heads for my 383 lt1 build. I am currently running a stock style plug and the tuner recommended NGK TR6 plugs. I was looking on AFR's website because a friend said he thinks I needed sbc plugs with the metal gasket and they say to use plugs with a gasket. Am I using the wrong plugs? Did the tuner recommend the wrong plugs as well? I would like to change the plugs now but unless I find out more I have to wait until Monday and talk with someone at AFR.

http://www.airflowresearch.com/sbc_install.php

Sep 18, 2010 | 04:50 PM

BigD383lt1

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number 13 on the link talks about the plug recommendations

Sep 18, 2010 | 05:09 PM

Purple Poncho

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Your heads and most aftermarket heads are mchined for a gasketed plug. So, yes you need the gasketed version of the TR6.

Look at Summit or Jegs. Aftermarket also need a longer reach plug.

Something like this might work

http://www.summitracing.com/parts/NGK-2756/

Sep 18, 2010 | 05:54 PM

BigD383lt1

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thanks

Sep 19, 2010 | 07:45 AM

BigD383lt1

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I was told I need a hot plug any recommendations. I am running low compression

96 383 stroker motor
4 bolt splay
Lunati crank
Oliver I beam rods
je inverted dish pistons (reason for the low compression)
comp cam 290 hr-12
comp cam promag roller rockers 1.6
AFR 210 heads
2500 stall
BBK 58mm throttle body
lt4 intake port matched
pacesetter long tube headers
off road Y-pipe
flow masters

Last edited by BigD383lt1; Sep 19, 2010 at 07:50 AM.

Sep 19, 2010 | 11:07 AM

BigD383lt1

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any suggestions anyone running similar setup?

Sep 19, 2010 | 01:10 PM

kinglt-1

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From: Ft. Wayne, IN

I ran tr55's @ .042 for years without any problems. Mine was a low compression 383 aswell( 10:1). comp billet xe 230/236 114, lpe ported stock castings milled 54cc, eagle forged rod/ crank, je dished piston(9.6:1 with stock 58cc heads) etc...