Posted By: rbstroker
360 piston dish - 02/11/09 10:00 PM
Does anybody have the spec for the volume in cc's for the piston dish on a 1979 360 2bbl?
360 piston dish
Posted By: RapidRobert
Re: 360 piston dish - 02/11/09 10:10 PM
8CC
Posted By: 451Mopar
Re: 360 piston dish - 02/12/09 05:43 AM
Here is the 360 specs I have for the silvolite cast replacement pistons:
Dished Piston #SL-1279 Compression Height = 1.576", Dish = 7.5cc
Flat Top Piston #SL-1273 Comp Height = 1.576", 0cc dish/dome (Flat Top)
With a 9.60" Deck the pistons should be 0.111" below the deck at TDC.
Dished Piston #SL-1279 Compression Height = 1.576", Dish = 7.5cc
Flat Top Piston #SL-1273 Comp Height = 1.576", 0cc dish/dome (Flat Top)
With a 9.60" Deck the pistons should be 0.111" below the deck at TDC.
Posted By: 1_WILD_RT
Re: 360 piston dish - 02/12/09 05:50 AM
Quote:
With a 9.60" Deck the pistons should be 0.111" below the deck at TDC.
Wanna send out a search party?? Thats Waaaay down there...
Posted By: RapidRobert
Re: 360 piston dish - 02/12/09 06:25 AM
My Badger 360 flattops(#B290's) have the same CH(1.576") & a measured .110" in the hole 
Posted By: rbstroker
Re: 360 piston dish - 02/12/09 11:53 PM
Picked up the 360 from a Moparts member. Just finished measuring everything. The stock pistons are .088 in the hole. The heads cc'd at 67 average. Plugging in the 7.5cc dish and a felpro 8.9cc head gasket yields 8.37 compression ratio which is just shy of the advertized 8.4. If I mill .072 from the heads, it yields 52cc chambers which amounts to 9.48 compression ratio. Can I safely do this or will the fact that there will be no quench mess things up. This is a really low budget bracket car for my grandson.
Posted By: ahy
Re: 360 piston dish - 02/13/09 01:00 AM
As "rule of thumb" 9.5 is considered max for non quench pump premium. CR should be OK, especially if its getting a more aggressive cam. I don't know if its considered safe to take that much off those particular heads though. Shorter pushrods and manifold milling may be required.
Posted By: bigslant6fan
Re: 360 piston dish - 02/13/09 02:09 AM
I am working on a friends '75 360.The stock pistons were .082 down in the hole.That was measured on the rim of the piston.