WizeAss

iTrader: (5)

Just curious.... I have flat top pistons and approx 11.5:1 compression. How much extra would it cost to convert to another 408 piston that would be better for boost? Looking at going to approx 9.5:1 or 9.6:1 compression? I have very well ported L92 heads and an eagle 4.0 crank


Thanks in advance.

GueSS Who

I think you need to wait and see what the rest of the stuff is going to cost before you worry about pistons. You might need a new crank and main caps with all the walking that bitch was doing.

ItsNotStock

iTrader: (24)

People have been using the stock crank up to 1,000 hp. And for his goals the stock main caps should be fine as long as he has aftermarket bolts/studs. How many miles do you have on your current setup? I remember you putting it together not too long ago. You might only be out the pistons/rings, hone, new cam, and some gaskets.

ls1290

iTrader: (20)

Keep in mind that to rebalance a previously balanced crank, takes a bit of skill. You just can not go slapping in malley where ever. In the long run it will be better to sell you current 408 shortblock and buy a new low compression shortblock.

Brad Hutchcraft

iTrader: (8)

or sell your heads and go with a bigger chamber.

Photochop

iTrader: (74)

Might look into selling your existing shortblock to fund the cost of a new more FI friendly one if thats the direction you're wanting to go? Might save on machine shop costs this way...