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73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: boyer61 on November 06, 2011, 10:52:51 pm
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It's calling for R44ts for light duty, r44t for heavy duty.
On the TS, the tip is more extended, the T it's must more recessed into the plug.
Which one should i use?
Motor is a 77 305 bored out .30 over, slightly mild cam, and headers.
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I will always go with what is recommended with the heads I am using. The safer bet would be the r44t as it would give you more clearance on your pistons you don't want to get too close and create a "hot spot". If, however, you have been using the r44ts I would stick with them. I am not speaking from experience on this, just what crosses my mind.
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Im currently using r43ts, one stage colder than the 44's.
The heavy duty and light duty threw me off lol