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  1. bollerwagon

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

    This is how it looks like. Haven’t tried to put a screw in yet, though.
  2. bollerwagon

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

    What is different with roller lifters? I thought it just needs this „cage“ that holds them in place, bolted on with three screws. And my block has the holes already and I even think the threads are in also.
  3. bollerwagon

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

    My rebuilding project makes new babysteps! I have purchased a broken VP 5.7 GS and intend to harvest the 906 Vortec heads and roller camshaft (and the push-things) from it. Can I take those parts without any changes and bolt them on my block? And would it make sense to have the roller stuff on...
  4. bollerwagon

    Smoke from valve cover / breather hose SBC 305

    that sounds reasonable. I was just worried, since this is a new phenomenon. Also, after some higher rpm runs (2-3000) it looks like smoke is coming out of the intake manifold gasket, have not yet figured out where exactly it comes out. Will do some investsigation in that soon and maybe update...
  5. bollerwagon

    Smoke from valve cover / breather hose SBC 305

    so can I fix/improve this with different oil? Or do I have to change piston rings?
  6. bollerwagon

    Smoke from valve cover / breather hose SBC 305

    Thanks for clarification. There is not much pressure when I hold the tubes with my finger or shut the valve cover with my hand. Still blow by gas? I would expect them to expand more violently when they have the chance.
  7. bollerwagon

    Smoke from valve cover / breather hose SBC 305

    No milky water, that was badly explained. Oil looks good too, if I pull the dip stick. But when open the valve cover cap there is very dense mist. If you leave it open for a while it clears up a bit and you can see the rockers work. Edit: just googled the "ring" hint. So it is the piston rings...
  8. bollerwagon

    Smoke from valve cover / breather hose SBC 305

    this is my fresh water cooled interim-engine, a 5.0 volvo penta V8 sbc engine. While this didn´t happen with my old engine, there is a lot of smoke coming from the flame arrestor when in idle. Plugging off the breather hoses, you can see the smoke coming out. When I open the caps in the valve...
  9. bollerwagon

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

    The adapter you mentioned seems to be exactly what I need. Translates from square to spread bore and has the holley screw pattern. I think I get it now: since the carb will be about 1.5 inches higher than usual, the fuel lines coming from the block will not be at the right height to connect...
  10. bollerwagon

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

    Scott, I don´t know your mom, so I´m just assuming, please don´t take it as insult. But could you explain it to me like you would to your mom? - What would a carb spacer look like, that transits from square bore to spread bore? - what do you mean by new fuel line? The carb is currently supplied...
  11. bollerwagon

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

    I hear you, but at this point I don´t feel comfortable to open up this engine any further than necessary. I want it ready asap and all effort regarding performance will go to my old engine. But do you have any ideas regarding the carb base plate gasket? What shape and thickness should I use...
  12. bollerwagon

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

    Gentlemen, here are the news: After being consulted that with repairing my engine I won´t be in the water on time, I´ve decided to get a replacement engine. There are a couple issues though: - Carb is missing, so I will plan to take take my old one - intake manifold seems to be from a different...
  13. bollerwagon

    Volvo Penta 855932 Prestolite 7801A advance springs

    the distributor is perfectly fine, just the springs are broken. I am not really willing to trash it just because of a 5$ part. No offence, but as I know the volvo penta dealers over here - I´d wonder if you´ve ever seen a boat older than 3 years... ;-)
  14. bollerwagon

    Volvo Penta 855932 Prestolite 7801A advance springs

    I am looking for the advance springs for my old AQ271C distributor and struggle to find them. original Part numbers seem to be 856249 or 855912 but those are nowhere to be found. Assuming I am not the only one with this problem, did anyone find a suitable replacement?
  15. bollerwagon

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

    Block and intake manifold are now at a workshop for ultrasonic cleaning, I was hoping the engine will be fine to use for HS use afterwards. if not, is it viable to install a filter in the closed cooling system to clean out the stuff?
  16. bollerwagon

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

    Aluminium heads I will for sure rebuild with a HX, seems to be better for the engine and gives me the freedom to use aluminium parts. Also I do not want to grow sea shells in my engine block again. bores and lifters I would like to have these roller things. My block has these three points to...
  17. bollerwagon

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

    After several ups (engine doens´t need a rebuild, just heads were too hot) and downs (engine needs to have the chambers drilled) the situation balanced out at down: - Heads were too hot and the valves formed tulips, as they say here. So the top is not flat any more, several of them were concave...
  18. bollerwagon

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

    @Scott Danforth, earlier you mentioned that you can build a 6.2 liter with 420hp. If we take the Center Stage engine, put in the D-shaped pistons, what else would be easily doable to have maximum power that does not hurt my wallet too bad and won´t reduce engine durability? - higher...
  19. bollerwagon

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

    I understood they can just pick any block with the mechanical fuel pump holes and build on it. The spec sheat reads "Hydralic Roller Camshaft". Hydralic? Whats´s that? Does anyone know the simpsons episode with the "malk"? Should I be suspicious? They say the engine comes balanced, they have a...
  20. bollerwagon

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

    They use the 062 Vortec heads and price wise I would use the used block variant (see below). I would expect a higher compression to make sense performance wise. Or is that not suitable for this kind of antique engine design?
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