![zz4 roller cam 350 specs zz4 roller cam 350 specs](https://corvettec3.ca/zz4/zz4_04.jpg)
Revised PCV location" Same as ZZ2 Same as ZZ2 Rocker covers Silver stamped-steel Same as ZZZ "Black stamped-steel, Pushrod guideplates Nonhardened Same as ZZZ Same as ZZZ Same as ZZZ No guideplates Timing chain Single roller, 1/2" pitchěutt linkěutt link Single roller, 1/2" pitch Single roller, 1/2" pitchĬylinder headđ0185087 Same as ZZZ Same as ZZZ Same as ZZZđ2556463Ĩ5lb seat pressure" Same as ZZZ Same as ZZZ "Same as ZZZ with Piston pins No offset Offset Offset Offset OffsetĬamshaft type Hydraulic roller Hydraulic roller Hydraulic roller Hydraulic roller Hydraulic rollerĠ.480""/0.480""" Same as ZZZ Same as ZZZ "0.208°/0.221°, Valve size (in):1.94 intake / 1.50 exhaust Pistons Type:High-silicon aluminum with offset pins NOTE istributor with melonized steel gear MUST be used with long blocks and partial engines with steel camshafts, or engine damage will occur. Ignition timing:10 degree BTDC 800 rpm 32 degree total 4000 rpm with vacuum advance disconnected 510 exhaustĬylinder head Type:Aluminum 58cc chambers of torque at 3500 rpmīlock Type:Cast iron with 4-bolt main capsĬamshaft duration in):208 degree intake / 221 degree exhaustĬamshaft lift (in).474 intake /. All together this combo makes 355 HP at 5250 rpm and 405 ft.-lbs. harmonic balancer and automatic transmission flexplate. exhaust valves and LT4 chrome silicon valve springs a GM aluminum dual-plane intake manifold HEI distributor cast iron water pump 8 in. 050 in.) and top it off with 58cc aluminum cylinder heads with 1.94 in. exhaust lift and 208 degrees intake/221 degrees exhaust duration at. Throw in a steel roller camshaft (.474 in. Just imagine a small block with 4-bolt mains a forged steel crankshaft powdered metal connecting rods and 10:1 hypereutectic pistons with offset pins. The ZZ4 needs no introduction as GMs most popular crate engine the ZZ4 offers a combination of performance quality and reliability that has made it the only choice for many of todays Hot Rodders. (read carefully as not all parts go with all engine combos, engines range from 350 displacement 355 hp to 383 displacement 500hp combos) Regardless, almost any modification will give you a lopey idle which is nothing to be ashamed of.OverviewMediaGalleryBuildDynoDynoChartTechSpecsWarrantyEngineįull Details for GM Performance Parts 24502609 My friend has the same engine and I have always tried to get him to turbocharge it or supercharge it because the compression is there and turbocharging it on your own would be somewhat comparable (pricewise) to new aluminum heads and cam. 200 lift, a 1.5:1 rocker arm will make the lift. You will have to do the homework as far as how much which combustion chamber will do what unless someone else is kind enough to look it up for you.Īs far as the rocker arms, the 1.5 and 1.6 is referring to the ratio that the rocker arm increases the lift of the cam.
![zz4 roller cam 350 specs zz4 roller cam 350 specs](https://m.media-amazon.com/images/I/61JzvfGnieL._AC_SL1500_.jpg)
You have a lot to gain starting off with a 76cc head. It's generally accepted that you can run 1 more point of compression with an aluminum head. You definitely want to get smaller combustion chambers to raise the compression probably 1 point (9.5:1) on an iron head. Can it be done in the direction I'm going? I don't have the money to buy the same part over and over till I get it right so Any help would be great!! Thanks guys.īlock: 4 – Bolt, 2 Piece Rear Seal, 4.000” BoreĢ49hp leaves much to be desired out of a 350. So do you have any good cam suggestion with the ZZ4 heads? Or should I go with a diffrent head all together? I can buy a ZZ4 cam new fairly cheap of ebay, would that be a good cam for this set up? My target horsepower is around 400. I want it to stay as factory sounding as possible. Is the smaller the cc camber mean my compression will go up? Also, what is the diffrence in 1.6 and 1.5 roller lifters? I want the power to increase but I don't want a bad idel. The heads I was thinking of going with are the ZZ4 GM heads part# 12556463. This motor has dished pistons which gives it a low compression. I want to put a roller cam, lifters, and rockers set up on and a set of aluminum heads. I have a 1972 240z with a 350 5 speed and though pretty could be better!! The motor is a 350 part # 10067353 with 2000 miles on it.