turning my 360 into a stroker will I need to do anything with timing? thanks

 

just got off the phone w/tec from eagle service and can't get rods for my build. going to be harder then i though for a rebuild virgin like me.

 

tec for summit told me that I can't use 360 pistons with 390 rods when making my 360FE into a stroker. is this true? he said doing so would send piston right up into head.

 

Jimshighboy;

Yea it always looks dark just before the storm. But even for virgins there is a tremendous amount of help freely and willingly given to all who venture forth.
In my experience whether it is building guns, motorcycles or FE series motors, IF you are serious and really need help at ANY phase of the game, the guys and gals here will jump through a lot of hoops to help you out.
Just don't try to dork them around as there is also a lot of BS meters running full-time.

Good luck and enjoy the time to doeright.

UncleFudd

 

My first suggestion is to use the search feature for the first few weeks, then put together some sense of a plan. Bring that to the table in a post and await some solid feedback. The folks here can and will help you get the answers you need. The hopscotch posting is just going to confuse folks and render little results you can make sense of. JMHO

 

Actually the 360 pistons are exactly what you want to use when converting a 360 to a 390. the piston pin height is different and the 360 pistons are flattop. With a 390 crank and rods and 360 pistons it will put your top of piston around .010 to .012 below deck assuming it hasn't been surfaced. With a lot of the 390 heads...c8's d2's...you'll end up around 9.5 to 1 static CR....not too bad for today's gas. Of course you really need to run the #'s to calculate this exactly...if you're too high and not enough cam then you'll create a pinging engine...or one that you have to run premium in....I did this myself...although I don't mind pumping the premium gas as the only reason I have the built 390 is for performance....LOL. For a good CR calculation you need to know the cc's of your head along with all the piston information and the head gasket you plan to use....there are a few different thickness head gaskets that you can use to tweak the CR to where you want it. Also, you need to keep in mind what you're really trying to achieve....if it's a truck and you're looking for a major torquer then you'll want to be a bit milder on the cam and you can't run as much CR as you could with a more agressive cam. The more agressive you get with the cam then the lower you bring the dynamic CR...and hence you could have a bit higher static CR. It gets complicated if you really want to nail it. The good thing is if you're build is on the mild side then you don't have to worry too much as things will come out ok....the more you push the limits the more you have to be careful with all this stuff. To reiterate....use 360 pistons....you'll be much happier...the truck 390 pistons are low compression pistons and they leave a lot of performance on the table.


Good Luck!

Tracy

 

ty Falconstng, now I know I can use 360 pistons with 390 rods all I have to nail is which cam to use. am looking for torque. I keep an eye out for thicker head gasket. thanks