My Chevy big block is assembled and ready but a few things went wrong and some things went right. I definitely don't claim to be an experienced engine builder by any means but I did learn quite a bit about the Chevy big block architecture during this build. If you haven't been following my 1970 Chevy Nova play list I suggest you go back and watch my other videos. This is my 1971 402 big block Chevy that I bought in a package deal of speed parts for a really good price.
I spent $1500 dollars on a rebuilt 454 long block and this used but running when pulled .60 over 402 long block, so I tore down and inspected the lower end which looked like it was in great shape and ordered all new parts for the upper end. I bought all new Comp Cams valve train in a matched kit that included a nice choppy 294H camshaft with .550 lift and matching valve springs, timing set, lifters, roller tip rockers, 3/8'' push rods, all new gaskets, Professional Products 8'' harmonic balancer, aluminum water pump and more spending roughly another $1300. During assembly I came very close to making a HUGE mistake by not realizing I had to shave down my factory valve guides to clear my high lift Comp Cams camshaft, double valve springs and Viton valve stem seals.
I found another KZitemr that had a very good video showing how to properly do the valve guide modification and what tools to order as well. So please check out AutoTechNick channel he has great engine building technique videos especially big block Chevy how to videos. Make sure to subscribe to follow this build and see me drop this big block 402 into my 1970 Nova it's coming up next. Also leave me your comments and thumbs up if you're liking the content I'd love to hear what you think of this build and give me some advice and feedback on things I did wrong on this engine build. I'm sure I messed up since I really don't know what I'm doing after all, I'm kind of just figuring this engine building thing out with a little help from friends and family.
Music Credits
Music from #Uppbeat (free for Creators!):
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License code: RW4WHVN7KLXB7G18
Music from #Uppbeat (free for Creators!):
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Music from #Uppbeat (free for Creators!):
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