kerosene, comes in 1 or 5 gal cans at HD. If you don't have a parts washer, get you one of those big pans that goes under a hot water heater or one of those big plastic pans that masons use to mix brick mortar. A head, an intake or even a block will fit in one. When you're done, let the solids settle a few days siphon off the cleaner top section for reuse and dispose of the rest in your used oil container. Get a selection of stiff brushes and some plastic putty knifes for scraping the solid stuff off. Store them in one of those clear plastic shoe box containers you can also get at HD. Put some newspaper in the bottom to soak up residual kerosene. I admire Harold's environmental concern, but when I tried simple green, I had the biggest darn mess you can imagine. I must have been doing something wrong.


Allen
Yeah, well, that's just like, you know , your opinion, man - The Dude

1948 Chevy 3600 - goal Original restoration, Current Stage 1 - Disassembly and getting body in primer
1954 GMC 3100 goal Hot Rod, Current Stage 1 - Get body in primer
1931 Ford Model A 5 window Coupe - Old Skool Hot Rod
1945 Ford 2N Tractor - Runs great
1964 Ford 2000 Tractor - Use it every week
1974 Stingray Corvette