vortec 454 heads with the casting number last three digits 279 are 100 cc have no provision for egr they are large oval port and will except all big block intake manifolds use the old school oval port gaskets but ps 1500 will not make 400 horse power maybe 300 your vortec motor or all gen 6 motors use a roller cam with small bolt circle top timing gear also non adjustable rockers if you change one piece your buying all new cam lifters push rods rockers rocker balls jam nuts metric rocker studs and not mark 4 parts but the more expensive gen 6 only parts
First off dude, please use some punctuation next time. I had to read that 5 times over before I actually understood it. Thank you for also giving your info on intake manifold compatibility. I’m definitely not going to run EGR. I have to disagree with you though. $1500 will make 400hp. Car Craft, Hot Rod, and just about every reputable gear-head publication that does DIY things, has an article/write-up on how you can make big power for cheap with a BBC. Especially considering I won’t be buying a brand new intake, or carburetor. I’m getting those two for practically nothing. The cam I will be buying new. And yes I will probably get a full kit and do all of the valve-train mechanicals as well as the timing set. However, it is a generally accepted fact that, on roller lifter engines, it is not necessary to replace the lifters, IF they’re in good shape. I’m not going with a big cam by any means. The largest one I’ve looked at was like a 238/242 with .512 lift. And since this is a truck, I won’t be revving it to the moon. I’ll rarely get over 4500. So I could probably reuse the valve springs too being that this is a low mile motor I’m talking about. Like I said, I probably won’t reuse anything, but I could.
Sent from my iPhone using Tapatalk
