2009年8月9日 · The best option up until recently was to use 305HO heads, 416s or 601s. I just saw a set of these ZZ4 heads on ebay, the aluminum 1.94/1.50 58cc L98 D-port style heads …

2009年5月9日 · I have a set of stock vortecs with 45k miles on them. No mods done for increased cam lift or special beehive springs bought yet. Came across a set of zz4 aluminum heads for …

2022年7月30日 · I have a zz4 crate motor in my chevelle. 20 years ago i put a comp XE-288HR cam in it with a edelbrock rpm air gap intake manifoIt’s topped off with a holley 750 double …

2009年11月25日 · My ZZ4 has Etec 200 heads and the GM hot cam with 1.6 HS rockers(218/228 and .525 each) and an Edelbrock rpm air gap for vortec intake, with a Race Demon RS 775 …

2012年11月17日 · L98/113 heads just arent that good to begin with, although they can be better with porting. I ported a set for a customer because he had them already, and was working with …

2009年8月13日 · the ZZ4- just like every other regular "ZZ" series engine ever built since about 1990 or whenever they came out- comes with the L98 Corvette aluminum heads on it. no …

2012年4月16日 · The Fastburns will give you probably the same amount of power as a worked set of zz4 heads with more potential to grow in the future. I also ran a cam similiar to yours..tad …

2019年9月5日 · The heads on this engine are the L98 corvette heads and have self adjusting rockers, so that is the kind of 1.6 rockers you must get...the heads have no guide plates. …

1998年12月13日 · Then use Bosch plugs. The metal body of the Bosch plugs is about 1/4" shorter than anyone else's. It works. The plug number is Bosch HR 6 DC, it's a taper seat, .704" reach …

2023年2月20日 · I have a dumb situation. My dad's '63 Vette has a 350, flat-top pistons, Vortec heads, ZZ4 cam, and a Performer Vortec (2116) intake. Runs great. The problem is hood …