350 screamer Posted March 25, 2010 Report Posted March 25, 2010 im doing a rebuild top and bottom i bought 115mm long rods stock crank stock stroke im wondering wat i should get for pistons long rod wisco pistons im sure, idk wat size im gettin yet cuz the cylinders might need to be bored out not completly sure yet im just wondering wat i should get for pistons? , i ordered a aftermarket long rod spacer kit for the bottom of the cylinders the two gaskets are .020' and the spacer is .188" thick idk if i should leave the spacer out and just buy the 795 series long rod pistons or throw the spacer on and get the 795 series pistons or i can just get regular normal pro lite pistons........and im haveing trouble picking wat head gasket to use the thickness cuz of the long rods? thanks for the help Quote
firebanshee Posted March 25, 2010 Report Posted March 25, 2010 I don't like spacers, if you add spacers to the bottom of the cylinders it will throw off all your port timings and your motor will run like ass. Just get the 795 pistons. IMO Quote
350 screamer Posted March 25, 2010 Author Report Posted March 25, 2010 I don't like spacers, if you add spacers to the bottom of the cylinders it will throw off all your port timings and your motor will run like ass. Just get the 795 pistons. IMO it WAS all stock except for pipes but thanks for the info helps a lot Quote
bansheesandrider Posted March 25, 2010 Report Posted March 25, 2010 it WAS all stock except for pipes but thanks for the info helps a lot Even if it is all stock, you still have port timing. When you port a cylinder you change the port timing and size or shape fom what it was stock. Leave out the spacer and use Wiseco 795 pistons. If you have to buy pistons, I would strongly recomend boring it so your new piston has a nice straight and round bore to run in and your new rings have a fresh surface to seat to. Quote
350 screamer Posted March 26, 2010 Author Report Posted March 26, 2010 Even if it is all stock, you still have port timing. When you port a cylinder you change the port timing and size or shape fom what it was stock. Leave out the spacer and use Wiseco 795 pistons. If you have to buy pistons, I would strongly recomend boring it so your new piston has a nice straight and round bore to run in and your new rings have a fresh surface to seat to. ohh yea i looked at one the other day its gotta be bored... i looked at it its got a chip or rather good scratch in the cylinder its being brought to a machine shop so its good.... oh and before it starts going together wat oil u recomend i should run now i got the long rods i wasnt even sure before hand Quote
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