How big is the spark plug on a small block Chevy?
Let’s use a small-block Chevy as an example. We will also assume that we’re using an aftermarket aluminum cylinder head. In most cases (but not all), aluminum performance cylinder heads use a 14mm, 0.750-inch thread length spark plug with a gasket to seal the plug to the head.
What kind of spark plugs do GM 350 4V use?
GM spark plug catalog and tune up spec’d using R44TS or R45TS for the 71 330hp 350. It should also be in the glove box manual. I’ve been running the 45’s in mine for years. Hmmm… While the owners maunual calls for R44’s (for all 350 4v). This is on page 74. The technical specs from GM say R45 for L64, R44 for L48 and R43 for Z28.
What are the right spark plugs for a’69 Camaro?
OK, I have seen several references on which spark plugs to use in my ’69 Camaro RS/SS Pace Car 350/300 with the Turbo 350 (all stock). I have a 1970 Motors manual that show AC Delco to be R44 used, but seen others that list R43S. Any body have an opinion or better reference? All my references show R44.
What kind of spark plug do I need for a ZZ small block?
This is the type of spark plug you will need for your ZZ small-block. Most stock small-block cylinder heads take this 0.704-inch thread reach plug with a tapered seat and a projected nose. This happens to be a Bosch copper center electrode plug.
Let’s use a small-block Chevy as an example. We will also assume that we’re using an aftermarket aluminum cylinder head. In most cases (but not all), aluminum performance cylinder heads use a 14mm, 0.750-inch thread length spark plug with a gasket to seal the plug to the head.
GM spark plug catalog and tune up spec’d using R44TS or R45TS for the 71 330hp 350. It should also be in the glove box manual. I’ve been running the 45’s in mine for years. Hmmm… While the owners maunual calls for R44’s (for all 350 4v). This is on page 74. The technical specs from GM say R45 for L64, R44 for L48 and R43 for Z28.
OK, I have seen several references on which spark plugs to use in my ’69 Camaro RS/SS Pace Car 350/300 with the Turbo 350 (all stock). I have a 1970 Motors manual that show AC Delco to be R44 used, but seen others that list R43S. Any body have an opinion or better reference? All my references show R44.
How big is the spark plug on an aluminum cylinder head?
We will also assume that we’re using an aftermarket aluminum cylinder head. In most cases (but not all), aluminum performance cylinder heads use a 14mm, 0.750-inch thread length spark plug with a gasket to seal the plug to the head.