WebDec 26, 2024 · Most 302 heads are on pre-Magnum LA roller engines. These are advertised 9.2:1 motors. IIRC the 1968 318 is also a 9.2:1 engine but the rating may be more "true" on the later builds. I've asked a few times on both boards what the actual measured differences might be but no one seems to know. WebMay 6, 2024 · Here's a quick video showing the porting that I did for Hayden's 318 Heads. These heads were used on the collaborative build with @John Wilburn. You can see ...
318 Small Block Build - How To - Hot Rod Magazine
WebMar 28, 2007 · The 318 cracked to life, and we ran the engine through the normal break-in cycle with the distributor set to provide 34 degrees of total timing. Idling down, the 318 sounded sweet commanding... WebNov 15, 2024 · yes, the 360 heads have larger valves and ports than the 318, but the chamber is larger too, so it would drop the compression ratio a bit. Why does the 360 engine have 318 heads? No idea. It was a low miles crate engine bought this summer. Runs great but looking at getting those heads. What’s the impact of reduced compression? diba tribe shoes
Breaking Rules With Our 392 Magnum Engine Build
WebJan 7, 2016 · 66 to 91 318 heads can be found on most cars, trucks and vans. 73-91 have hard exhaust seats. The newer, the more likely they are cracked. A lot of people have them laying around, as we switched them out. Use carbide cutters or stones. Sandpaper rolls are for polishing, and not worth bothering with. WebMopar 318 Poly Performance from Toth Performance. 1,201 likes · 3 talking about this. I have been building Mopar engines and porting Mopar heads for over 40 years and I have been developing the poly... Mopar 318 Poly Performance from Toth Performance WebApr 10, 2024 · This 318 head will out perform a 340/360 head, give snappier throttle response and mileage because the air is moving quicker to atomize the fuel for a better more complete burn for more power. There is a point … diba true bags wholesale