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#1 |
Registered User
Join Date: Nov 2003
Location: kc
Posts: 229
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which plugs r45t or r45ts
ive got a new gm 350 crate w/HEI, gm parts counter tells me to run the r45t, my chiltons and other autopart stores says to use the longer r45ts. im running the shorter r45t with no problems, didnt want to chance the longer plugs hitting top of piston. just wondering if anyone else has encountered this problem.
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71 C10 SWB BLACK AND WHITE 350 CRATE TH350 ENJOY LIFE |
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#2 |
Too many is never enough!
Join Date: May 2003
Location: Idaho Falls, ID
Posts: 455
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Plugs
If I remember right, the parts store actually changes plugs between '71 and '72. Not sure why really. Of course my heads were off of a '72, the block was '75, and the truck was a '68! If it's a new GM crate motor, go with what GM recommends for that motor. Don't worry about the year of the truck.
Jason
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Jason 1968 K10 SWB Fleetside 1971 K2500 GMC LWB 1968 K20 (later frame, donor body) 1972 C20 LWB parts truck 1993 K2500 Suburban, tow rig, 454, 4L80E NEW!! 18' Siem's car hauler 2004 Honda Odyssey (family man!) |
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#3 |
Registered User
Join Date: Jul 2003
Location: north of Phx AZ about 30 miles
Posts: 698
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I may be wrong but I thought the difference between the r45ts and the r45t was that the ts was a peanut plug(with a tapered seat) and the t was a standard plug with a washer. I run the r45ts in my gm crate motor.
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Andy,Phx AZ '67 C-10 (Ahhh, done at last. Well there is that disk front end I want to put in and...) "23 C-Cab-sold '48 Ford 8N tractor(still working) '67 Scout(Now on the road) '70 MG B.-sold |
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#4 | |
Bloo
Join Date: Feb 2001
Location: Barren County Kentucky
Posts: 6,285
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TS is a tapered seat plug, no difference in length as far as i know
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ASE Master Certified-GM Trained-Mechanic 1968 Chevy C30 157" WB Wrecker 1969 Chevy CST/10 SWB 1971 Chevy Custom/10 (first truck) 350, NV3500 5 speed 1971 Chevy K20 Custom Camper 4x4 350 TBI, SM465/NP205 1974 Chevy Custom Deluxe/10 1979 Chevy Custom Deluxe K10 farm truck beater 1989 Chevy K2500 Quote:
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#5 |
Senior Member
![]() Join Date: Mar 2003
Location: Colfax-California
Posts: 8,549
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T is for the tapered seat and
S is for and extended tip X is for a wide gap I always run the TS plugs myself they seem to me to burn better |
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#6 |
Registered User
Join Date: Jan 2003
Location: Washington State
Posts: 8,834
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I'd rather run NGK plugs, can use different ones for wheather change. Out here it helps.
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1970 Chev CST 2003 Harley Fatboy 1975 Chevrolet Step Van 1956 Chev Bel Air 1977 Blazer 2WD For Sale $3000.00 1978 Blazer 2WD For Sale $7000.00 1978 Silverado 2005 Monte Carlo |
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