What are good stock sized chevy 350 Pistons that upgrade my compression?

What are good stock sized chevy 350 Pistons that upgrade my compression? I dont and wont bore my block out at all, but I want better pistons. I need to know what type size and company makes good pistons for this? also any other info on pistons and how to upgrade them would be good.|||A thinner head gasket, a smaller combustion chamber, a longer stroke, a smaller piston dish. If you are deciding that compression is the way to more horsepower, that might be misleading. You will end up having to run a higher octane fuel, you can only guess on the limit on compression ratio in your engine for 91-93 octane gas. With stock heads it will be a little lower.





Also you are asking to buy basically some custom pistons that have the piston pin at a different height, or a raised piston crown.





Also more info is needed. Like what engine, heads, and some cam info. Also cc'ing your heads and piston would allow you to know for sure what you have and go from there.|||Have the heads milled, better yet find some nice small chamber aluminum heads. Better get a cam too.





Enjoy 450 hp.|||You left alot of details out.. Like what you have non. What year, what heads, what compression.





If my guess is right I would say a mid 70's through mid 80's 8.5:1 350





If thats the case you will be MUCH better off with a head swap rather than pistons.





Yours will have between 74 and 78 cc heads that flows like crap





By going to say a used 96-00 vortec 350 head which has 62cc chambers and a 4.100" x .015" fel pro 1094 head gasket would bring your compression up to 10.14:1





Plus you get the 50cfm higher flow from the heads whick would add about 35-40 HP by its self.. So it's a win win. You can pick up used vortec heads and rocks for around $300 now





Add $150 for an intake to fit em'





The piston replacement aint your best option.. One it makes no sence to pull the engine and take it 90% apart and just replace pistons





Next, new rings needs a cross hatch in the cyl to seat in and that means you would need to atleast hone the block





Next pistons and bores wears together some. You have a bore with slight taper to it and install a new piston in it, you may have probs. So really if its a used block, you really need to bore it before installing new pistons





Next with stock 76cc heads its gonna take a small dome piston just to get you to 10:1 compression. Dome pistons then has probs of thier own in way of dome blocking plug flame front, piston to valve clearance, piston to head clearance, etc





In a flat top design the smallest ones I found are...


5.00cc 2 valve relife piston.. With the 1094 gaskets and 76cc heads that will still only make 9.016:1 compression and the price is $627 plus you will need about $40 machine work to have yours pressed off and these installed on rods


http://www.summitracing.com/parts/MLE-SB鈥?/a>





3.7cc which would put you at 9.134:1 compression


http://www.summitracing.com/search/Make/鈥?/a>











Lets see what elese we can come up with





In dome pistons these will get you 10.129:1


http://www.summitracing.com/parts/UEM-KB鈥?/a> $400





These, 9.91:1


http://www.summitracing.com/parts/UEM-99鈥?/a>





10.12:1 http://www.summitracing.com/parts/UEM-KB鈥?/a>





10.14:1 http://www.summitracing.com/parts/UEM-IC鈥?/a>





10.17:1 http://www.summitracing.com/parts/UEM-IC鈥?/a>





10.63:1 http://www.summitracing.com/parts/UEM-IC鈥?/a> $444 plus close to $100 for rings, plus the $40-50 machine shop fee to swap them on, plus the $75 in gaskets





Be smart and swap heads to a 62-64 cc head with good flow, like 230-260 cfm intake flow