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I wanted to pass on this information to other corvette owners with a ZF transmission and the Dual Mass Flywheel. I have the engine rebuilt on my 1989 Six speed and these guys ground my flywheel for 85.00. It works great withou noise or any other issues. Heres is the link to there website...

I have a 1989 with six speed and AFR 1041 heads. I'm ready to either ebuild or replace the engine. I have a budget of 5-6K and wondering if I should simply rebuild my current engine or pruchase a should purchase a ZZ4 or 383 shortblock and use an after market intake? Does the 383 require a...

I have a 1989 corvette with a bad front rank seal and some blowby oil on the valvercovers. To temporarily mitigate the crank seal leak is used some seal sweller and for the blowby i have also used some ring sealer. The ring sealer resulted in smoke out of the exhaise at freeway speeds. Prior to...

I have a 1989 conv that has a front cranks seal leak (as evidenced by the oil on the uderside passenger side of the car). My question is, could a bad front crank seal and bad oil pan gasket aloow extra air to pressure the engine enough to cause oil blowby at the vavle covers, or is htis strictly...

I currrently run an Air-oil serperator on the PVC side of the engine (1989) to catch minor blowby from the PVC. I would like to do the same on the passeger side breather to TB connetion. Could their be any adverse effects? or would it be best to use an oil catch can on the passenger side? I...

My passenger SIDE exhaust manifold (in the tube area that holds the air check valve) has developed a small crack and sometimes a mist of oil can seen on the tube. Can this repaired by welding or must it be replaced. Probably loking at headers if its un-repariable.

This weekend whhile changing my valve cover gaskets on my 1989 six speed car, I was pleasently suprised to learn that the car had Air Flow Research heads (190VC) was stamped on the front of the heads. A check of the AFR website but could find no information on the heads. Can I assume that...

Just finshed install of flowcooler water pump, shaw 180 t-stat, and new coolant. My idle speed has increased to 1100 rpm and the radiator fan does not turn on (would i get codes if bad fan relay?) on at any point, even after 30 minstes of driving. I'm wodering if my t-stat is installed wrong...

I have a Haynes manual that state both pulleys should be torques at about 8 fl lbs. Does anyone know any differently?

I'm in the process of replacing a bad waer pump and I was looking for advice on freeing the A/C bracket. I've removed all of the bolts I can see, are there any hidden ones that i'm just not seeing? This bracket is different from tmy old 1987 coupe.

Has anyone tried the aftermarket mufflers being sold by Midamerica Motorworks like the ZR-1 style exhaust, the LT1-Style Targa mufflers, the Classic European Twin-Tip exhaust. Is there any performance gain or are they simply a way to change the exhaust note.

I have a 1989 Corvette Conv and I recently repalced the valve cover grommets on both sides but on the dirver side cover ther still appears to be a small leak from the PVC vavle grommet. Could this be a blowby situation or could exhaust back pressure cause this? When I purchase corvettes, I...

Does anyone know if the passengfer side valve cover breather gromet can be removed like the driver side (by just pulling it straight out) or does the valve cover have to be removed. Als, is their supposed to be to pvc valves of just one on 1989 l98

I have a 1989 Six Speed Conv and the valve covers are in really bad shape (small amout of oil leaking around the oil fill cap and through all of the grommets) and I'm looking to purchase some aftermarket ones instead of paying 150.00 for the GM Type. SUMMIT Racing sells a Mr. Gasket center bolt...

My parking handle pawl got bent to the point where it no longer contast the unlocking pawl. I have searched most of the parts suppliers I know. Does anyone know if these assemblies are still produced or where I can purchase a new or used assembly. Otherwise i guess I could try and bend the pawl...

I installed a Hypertech Super Coil in my 89 Six Speed Conv this morning and I followed the haynes manual on the cap firing order but appear to have gotten it screwed up. I have wired it based on the #1 terminal as stamped on the inseide of the cap and continuing clockwise and now no start

Hey fellow Vette owners, I'm considering the BBK 52 MM Throttle body (model 1537) for my 1989 Six Speed Conv, but I was wondering if anyone had purchased this model and whether it comes equipped with the necessary manual transmission hook up , or whether the linkage had be changed out from the...

My mechanic say that my 1987 Auto, Coupe is suffering from considerable crankshaft blowby causing problems with the IAC Motor. Does this term mean a lower end or full engine rebuild. If so how much can I expect to pay for a complete rebuild in the San DiegoCA. area?

I'm looking for a 48MM throttle body (TPS mounting holes stripped) unit for my 1989 six speed conv and can't seem to find one anywhere. Most of the vendors (TPIS, HOLLEY, BBK) seem to only offer a 52MM. Will the 52MM fit the stock plenum without modification?

In my attempt to adjust the TPS, I acidently broke one of the torx head screws used to anchor the TPS switch in palce. I had another TPS that also came with a different type of screw (non torx) upon installtion of both I have apparently stripped the thread within within both TPS mounting holes...