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  1. bollerwagon

    What timing gear set for Vortec engine 350 block 880 / 5.7GXi?

    The difference seems to be the cam side: - flat tappet -> bigger diameter on holes of the cam sprocket - roller tappet -> smaller diameter Called Cloyes today, the guy gave me two options Cloyes Street True Roller Timing Sets 9-1157 Cloyes Original Race True Roller Timing Sets 9-3157 9-3157...
  2. bollerwagon

    What timing gear set for Vortec engine 350 block 880 / 5.7GXi?

    The diameter of the hole in the middle of the cam sprocket is smaller and the diameter where the holes for the screws are is also smaller on the Vortec cam sprocket. I also have a AQ271C (pre vortec) in parts here, there the CLO-C-3023X with the larger diameter fits well. Maybe Vortec and...
  3. bollerwagon

    What timing gear set for Vortec engine 350 block 880 / 5.7GXi?

    I see GM offers only one timing set: Single Roller Timing Chain Kit this is the same set that summit suggested with the part number 12371043. If this is indeed the stock truck part, then the mappung of the GM and the Volvo Penta part numbers would be like this chain GM part number 14088783 ->...
  4. bollerwagon

    What timing gear set for Vortec engine 350 block 880 / 5.7GXi?

    I understand and agree to your idea of "oversizing" things. This is why I purchased the double roller (that doesn´t fit). But since the engine ran well the first 30 years with the single and cheap stock part, I thought that would be fine for the next 30 years. The list you provided does also...
  5. bollerwagon

    What timing gear set for Vortec engine 350 block 880 / 5.7GXi?

    I would like to replace the timing gear on the Volvo Penta 5.7GXi I´m building. I am using a old GS engine block, but the part numbers of the parts seem to be identical: 3856114 cam shaft sprocket 3852685 chain 3852690 crank shaft sprocket On the cam sprocket I took off the GS it says 12552129...
  6. bollerwagon

    Stainless Steel Exhaust System for AQ271C (alternative to Hi-Tek / marinetorq)

    What I liked about the hi-Teks is that they have the brackets for alternator or fuel filter exactly matching the engine setup. Barr, Eddie marine or stainless marine don’t have this, I assume.
  7. bollerwagon

    Stainless Steel Exhaust System for AQ271C (alternative to Hi-Tek / marinetorq)

    I was absolutely in love with the australian exhaust system from Hi-Tek because of its look and the guarantee that never again the failing gasket will kill my engine. But I can´t manage to get one from them that fits, the HT-28 provided by them is too low, not matching with the Y-pipe from the...
  8. bollerwagon

    What´s the best replacement for AQ271C (or 570) 5.7 GM engine, ideally stroker?

    I have not changed seats, these are genuine in a ‘89 engine. I just replaced the valves. I don’t know for sure and I don’t have good pictures, but it looks if they were this way when I pulled them off. I’ve ordered the valves according to measurements from the old valves. Summit racing was not...
  9. bollerwagon

    Volvo Penta 855932 Prestolite 7801A advance springs

    I still need those springs, the rest of the distributor works fine. Do you happen to know a specific product number or something?
  10. bollerwagon

    Volvo Penta 855932 Prestolite 7801A advance springs

    these are not springs, or do I get that wrong?
  11. bollerwagon

    What´s the best replacement for AQ271C (or 570) 5.7 GM engine, ideally stroker?

    The heads from the AQ271C are being machined, they got new valves also. What´s confusing is that the exhaust valves are not really deap in their seat, they seem to stay right in the fire. I have no expertise here, it just feels wrong. Or at least not ideal. But I think it wasa pretty similar...
  12. bollerwagon

    Anyone sells a closed cooling kit for a V8 petrol MPI? Preferably Volvo Penta

    Wow, this is a profound elaboration. Thanks. The bypass on the HX cooled engine was new to me and what confused me. I assume it is part 17 in the attached picture? On the GXi-FF I have this setup. I have purchased a used but original HX for this engine, should I look out for the original...
  13. bollerwagon

    Anyone sells a closed cooling kit for a V8 petrol MPI? Preferably Volvo Penta

    still trying to understand the mechanics: in the raw water cooled engine I have the impeller pump, that pushes water into the engine and also the pump that circulates the water in the engine, pushing it through the collectors in the exhaust. In the freshwater cooled engine, the circulation pump...
  14. bollerwagon

    Anyone sells a closed cooling kit for a V8 petrol MPI? Preferably Volvo Penta

    so i could even use my standard thermostat housing and block the ledtover connections?
  15. bollerwagon

    Anyone sells a closed cooling kit for a V8 petrol MPI? Preferably Volvo Penta

    I think I begin to understand how a closed cooling works now. For the old engines you basically just need a HX with 5 openings. - - Raw water in - 2 x Raw water out to the exhaust - Fresh water in - Fresh water out With this setup you can youse a simple automotive water neck and thermostat...
  16. bollerwagon

    Anyone sells a closed cooling kit for a V8 petrol MPI? Preferably Volvo Penta

    What did you use as thermostat housing?
  17. bollerwagon

    Anyone sells a closed cooling kit for a V8 petrol MPI? Preferably Volvo Penta

    sorry, this is a misunderstanding. I mean the full kit (all the parts) for a half system (just the engine fresh water cooled). I don´t know the blocks age, bought it as a broken engine. But it is currently cleaned, they remove the freeze plugs and do some ultrasonic magic. Workshop is...
  18. bollerwagon

    Anyone sells a closed cooling kit for a V8 petrol MPI? Preferably Volvo Penta

    I thnk I am too clueless to find the correct piping, so I was looking for a full set, mo problem it it is used as long as the parts can be reused.
  19. bollerwagon

    Anyone sells a closed cooling kit for a V8 petrol MPI? Preferably Volvo Penta

    Orca can’t deliver before June…
  20. bollerwagon

    Anyone sells a closed cooling kit for a V8 petrol MPI? Preferably Volvo Penta

    I´m looking for (idealls) full set of closed cooling system for my 5.7 GXi, anyone has that laying around? I mean it´s better selling it than havint it blocking your garage...
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