mr 202 Posted January 11, 2014 Report Share Posted January 11, 2014 Im tearing into my motor and was wondering if anyone knows if there's a difference between the t83 wich is whats on my motor and the 07w? Quote Link to comment
ggzilla Posted January 11, 2014 Report Share Posted January 11, 2014 I think the 07W head has 'T83' cast into it. Remove the rocker cover to see if '07W' is present. Maybe it will, maybe not - not all Nissan heads have the applied model code cast into the head. For North America, Z22s only came with 07W heads - both the 720 Pickup and S110 "200SX". Quote Link to comment
mr 202 Posted January 11, 2014 Author Report Share Posted January 11, 2014 Ok cool thanks I just went out and looked and theres nothing but a few random letters on the top edge where the valve cover sits againsed it Quote Link to comment
datzenmike Posted January 11, 2014 Report Share Posted January 11, 2014 These are the two heads used o the Z22 in the 720 11041-07W80 11041-07W03.... also used on the Z22E on the 200sx and so will have injector ports cut into the tops of the intake port.... Z22 head is the bottom one with round ports. Both use 07W in the part numbers. I looked at all Z20S / Z20E heads and the Z24, and there were none with a t83 in the part numbers. I have cc'd the Z22E, two Z22 from 720s and two Z24 and they had the same combustion camber volumes. The Z24 had squarish intake ports (see top head above) while the Z20 and Z22 were round with injector notches. There is a special Z20S head available on the 720 with an estimated 45cc combustion chamber W04 casting that has two small quench areas on it. Quote Link to comment
ggzilla Posted January 12, 2014 Report Share Posted January 12, 2014 Great info Mike. MR202, I just found that T83 is a JDM head for Z22 http://datsun1200.com/modules/mediawiki/index.php?title=Nissan_Z_Engine#Head_Types 11041-T8301 HEAD ASSY-CYLINDER (8208-8606) <> 11041-T8303 (8605-8805) * JAPAN W40 8208-9902 "シビリアン" (Civilian bus) Z22S 8208-8805 * EUROPE 720.Z22 * WORLDWIDE RHD 720.Z22 * WORLDWIDE LHD 720.Z22 11044-06W05 GASKET-CYLINDER HEAD <> 11044-06W04 13270-G2500 GASKET-ROCKER COVER 11056-H2301 BOLT-CYLINDER HEAD -8707 > 11056-H1000/11056-H1010 (8707-) 13001-W0480 CAMSHAFT ASSY <> 13001-W0483 Haha, it uses Datsun 1200 low-po cylinder head bolts. Torque the head bolts every 2 years! Quote Link to comment
datzenmike Posted January 12, 2014 Report Share Posted January 12, 2014 Maybe it's an import motor just like the L series ones back in the '80s? I wonder what the differences are? Quote Link to comment
ggzilla Posted January 12, 2014 Report Share Posted January 12, 2014 Yep, it's from the 80s. And the way non-US motors got to the US is via "good used Japanese engine" sales - they sent the used motors over by the container load. I do not know how it is different, but since it uses same gaskets, valves and camshaft as US engines, probably not too different. It used the same "D81" block as USA Z22 engines. 1 Quote Link to comment
ggzilla Posted January 12, 2014 Report Share Posted January 12, 2014 More on the head bolts. The Z22 need no head gasket retorque if equipped with '13' bolts. Unmarked bolts I believe should be retorqued every 2 years/24000 miles. '13' bolts are high-tensile Chromoly-V steel alloy. The low-performance bolts have no marking on the head. Remove the cam cover to verify which ones are installed. All USA engines should have the '13' bolts. But about 1/2 the JDM Z22s used the lo-po bolts. * 58 lb ft * Bolt head marked '13' * 43 lb ft * Unmarked bolt head Quote Link to comment
datzenmike Posted January 12, 2014 Report Share Posted January 12, 2014 Ha ha I thought you were kidding but I just looked because I remembered something..... I picked through my bolts to see if Z series would work on a KA head. They do in fact have a 13 on the top. Quote Link to comment
mr 202 Posted January 14, 2014 Author Report Share Posted January 14, 2014 hey thanks guys sorry it took a couple days, but my motor is out of an 82 truck and my head bolts are not marked and when i got the head off i found that the head gasket blew between 3 & 4 so im gunna get a timing set and gasket kit and make sure the heads good and i bought a cam and header to throw at it put the header on a while back but never put the cam in yet, the thing already ran reeealy good idk on hp but it had good power all the way through and sounds nasty with just weber header and 2.25 to a 2 chamber flowmaster with no tail pipe stopped right infront of the axle cant wait to see how she runs once the cams in, otherwise if you guys know of anything else i should do without going into the lower end while i have it apart any input would be verry much appreciated!! Quote Link to comment
mr 202 Posted January 14, 2014 Author Report Share Posted January 14, 2014 and is there anything i can do about gearing my rearend its stock 78 620 the gearing is terrible that it has now like only doing 65 when it says its doing 80 lol Quote Link to comment
ggzilla Posted January 14, 2014 Report Share Posted January 14, 2014 The T83 head has no effect on that. But you can find that issue discussed before by using the Search feature. Quote Link to comment
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