ZZ4 spark plugs?
Thread Starter
Drifting
Joined: May 2004
Posts: 1,442
Likes: 2
From: Flanders NJ
ZZ4 spark plugs?
I need a number for AC Delco plugs for the ZZ4 crate engine. GM Perforance catalog does not list them and the customer service guy could not come up with one, go figure.
Dave
Dave
Burning Brakes
Joined: Aug 2002
Posts: 1,146
Likes: 10
From: Scottsboro Alabama
I bought my ZZ4 in 97 and it came with MR43LTS plugs. It's a marine plug. I have since upgraded to aluminum fast burn heads and still use the marine plugs. My 97 GM Performance Parts Catalog lists the marine and FR5LS as recommended plugs. The marine plugs are hard to find locally but Rock Auto probably has the best prices even with shipping.
http://www.rockauto.com/catalog/cata...=FR341-MR43LTS
http://www.rockauto.com/catalog/cata...=FR341-MR43LTS
Thread Starter
Drifting
Joined: May 2004
Posts: 1,442
Likes: 2
From: Flanders NJ
I bought my ZZ4 in 97 and it came with MR43LTS plugs. It's a marine plug. I have since upgraded to aluminum fast burn heads and still use the marine plugs. My 97 GM Performance Parts Catalog lists the marine and FR5LS as recommended plugs. The marine plugs are hard to find locally but Rock Auto probably has the best prices even with shipping.
I guess I'll try for the MR43LTS plugs again. The local parts stores don't carry AC Delco anymore because they have a min. order of like $7K. They want you to go to GM dealers for AC Delco stuff to help save the company!
