I'm glad you showed the detail on those gaskets. Those gaskets would leak like a faucet in a 2 star motel!! I'm thinking about removing the 360 heads on my 318 for a set of 302 casting heads from the 80's. Possibly with 360 valve sizes. Also 100% on the Snap-on stuff. No, it is not cheap but I don't regret buying any of it. This is coming from a guy who broke the cheap stuff many...many times. Lots of my good stuff is hand me down stuff or came from the flea market.

I just got myself a 1988 dodge d250 with a 318 small block last summer, it’s a great running truck, I’m going to build this truck up, thank you for the awesome video, helps me out a lot seeing what I need and can do to help the 318 out, I’m getting a 360 soon from a friend which I’ll build up from bottom to top slowly as money allows but I’m looking to do what I can with the 318 until then 😎😎

Good info.You are doing a great job. I am porting my 1972 318 head right now and I saw your video. Been using the 318willrun KZfaq website info. I will look at the rest of your videos.

Magnet with the bag. Good idea!! I'll use that tip! Thanks brother. 👍

The 1976 318 has a small port head and large port head on the intake side which works awesome for a four barrel intake. And with a little porting it makes a very good head. Because the large port head is almost the same size as the 340 or 360 and that large port 318 head has bigger valves. That large port head comes in the dodge D100 truck's and i have always used truck heads for 318.

I used Percy's/Taylor "seal for good" gaskets for my 318...multi-layered aluminum....they seem to work pretty well. Yes, the most emphasis on the port roof for exhaust porting without grinding through the bump (water jacket). 👍

Hi Joe, if the header flange is slotted like the gasket at the inboard bolt holes on the outer ports, weld the slot with a filler strip of steel (weld what you can get at with it bolted down to minimize warping), grind it flat, then redrill the hole using a good factory gasket like an MS95480. The slotted area is where the factory gaskets seal because there is practically nothing between the port and the bolt to seal against. You mentioned using the magnum valves but they are shorter with thinner stems. I'd go with the LA 360 valves.

I've always used the metallic face manifold gaskets and never had a leak

if you use 273/318 manifolds and gaskets on a 340/360 you will have leaks and vise versa when putting 340/360 headers/manifolds and gaskets on a 273/318 .

Damn, those Summit header gaskets were garbage!

some people know this and some people don't . when modifying stock heads you can also smooth out aka round the sharp edges on the end of the tuliped part of the valves . also don't use 340/360 gaskets on a 273/318 ! use fel pro stock exhaust manifold gaskets for a 70 dodge d100 truck with 318 from rockauto. if you use headers weld up the ports on the headers to match the ports on the 273/318 . and use above gaskets mentioned. make sure to spray both sides of gaskets with copper permatex spray and once fully dry apply permatex 700 degree gasket sealant on both sides as well. if you in large the ports make sure to do the same on the manifolds

looks great man

90% of 360 magnum heads that I've seen have cracks between the valves, and it doesn't seem to hurt anything.

Use headers Joe, it is a difference of night and day as far as breathability

Always use Fel-Pro intake gaskets when port matching

I had the same problem with those headers. Maybe they fit a magnum better? I dunno I'm not that familiar with the magnums but it's the same problem with all the la heads I've tryed.

That light works good for porting heads. That one gasket was horrible.

wrong exhaust gaskets = no matter what anyone say`s = not 318 ! unless you have 273 v8 heads ! look small !