Hello There,
I just rebuilt a 228 last year. The rebuild kits are not the same as the 235 or 216 or 261.
GMC's are a different although similar monsters.
As far as gaskets, those were easy, I got those at NAPA and they were felpro brand. I looked for the box for a p/n, but I must have thrown it out. I paid about $100 bucks for the set.
Rod and main bearings are different if I recall, but are the same for the GMC 228, 248, 270 and 302 I believe.
I think that the cam bearings are the same between the 235 and 228, but the cams are different.
Pushrods and lifters interchange, but if you have them you won't need to replace. Its possible your cam is re-grindable if you have it, but even if you don't I was able to get one from NAPA as well for about $79.
Pistons and rods are different also, but if you have the rods you're golden. I got pistons and pins through Venolia for about $350 for the set. A bit pricey but they were not of inferior quality as from EGGE and they have them as well, in both domed and flat top, depending on your head.
I have a set of domed 40 over pistons and rods if you want them for pretty cheap and some other parts as well.
Freeze plugs are at NAPA and the dorman part number is listed at oldgmctrucks.com.
I rebult my head completely with new guides and valves and seats and the valves were the only pricey thing there. I think that I paid $12 a valve, but they were stainless and made in the USA. I got them through my machine shop here in So Cal and if you need the number I can run out and source it, but if you have your old ones, they might be workable. Mine weren't except for one and so I replaced them all.
I think that basically covers it. In the end all the parts are still really accesible and not much more pricey than if you were building a 216 or 235. I actually think that I soent about $200 less than when I rebult my 261. Plus I think that the GMC engine it much more heavy duty than the 216 or 235 of that same vintage.
54Monster
