What is the difference AC r45ts and AC r45ts8 sparkplug?

.035 is normal for Chevrolet

.035" if it has r45ts ac Delco plugs

.045 for general go fast

plug choice is personal and price weary u can pay from 1.99 --to 10.99 a plug some plug choices are champion --3035//autolite--ar3932//ac delco--r45ts//E3--42///bosch---4009 these plugs run 1.00 to 5.99 a piece and ur plug gap is .060

Been there done that code. Ended up being the sparkplugs. Do not use Bosch, the contacts actally arched together on mine 2 different times. Use a different brand or even AC Delco OEM.

The a/c delco that your local G.M. dealer probably has in stock possibly r45ts

the plugs you need are ac delco you can find the replacement proceedure on autozone.com vehicle repair guides

.045" .

only a handful will work with the motorcycle engine you own. Also different brands (NGK, Bosch, DENSO, Champion, Esc) will work better on different types of engines. As a general rule of thumb, use the sparkplug your manufacturer recommends for your motorcycle (same brand and part number). Unfortunately some spark plugs are very specific to a type of engine and make only for that engine such as the NGK ME8 for $34 per sparkplug, compared to the normal price of $3 per sparkplug.

only a handful will work with the motorcycle engine you own. Also different brands (NGK, Bosch, DENSO, Champion, Esc) will work better on different types of engines. As a general rule of thumb, use the sparkplug your manufacturer recommends for your motorcycle (same brand and part number). Unfortunately some spark plugs are very specific to a type of engine and make only for that engine such as the NGK ME8 for $34 per sparkplug, compared to the normal price of $3 per sparkplug.