Budget Build Chevy Small Block 406 | First Fire Off Didn't Go As Planned!
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- เผยแพร่เมื่อ 18 เม.ย. 2024
- On this episode, we fire off the 406 Small Block Chevy on the engine test stand and it does not go as planned. After we break this engine in, we are going to install it in a 65 Nova 2 door hard top.
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Got to love you some big inch small block new subscriber pretty happy I found your channel
Welcome!!! Glad to have you!!
You should add a couple O2 sensors to your run stand. Would help with sorting out the base tune. The good ole brake clean spray down to check for vacuum leaks is always my go to. Sounds good at RPM though. Crazy issue with the distributor.
That’s actually a really good idea.
I like your oil primer tool, I made one similar to that with a points distributor but I ground the teeth off of the gear instead of taking it off.😎👍
That would work. It didn’t cost anything and I use it all the time.
@@tackettshoh
Yep me too. Had the old points distributor laying around that I knew I wouldn't be using so.... Plus using a distributor will closely mimic actual running conditions because it has the oil crossover slot in it.
I usually prime the pump with the valve covers off and prime until I can see oil being pumped through every push rod to know the oil is flowing where it's supposed to.😎👍
@@itseithergonnaworkoritaint7852 I usually do the same. Valve covers off.
I’m just happy the oil pressure was high and it was consistent. This is the bottom end from the fluctuating oil pressure videos.
I got some bugs to work out. But I’m happy so far.
🎉❤great job.
Thank you sir!!
Nice job troubleshooting , i'm looking foward to you getting it dialed in. Give Oliver a bone, get yourself a ice cream cone, Lol
He’s a good boy. He’s my shadow.
Ya I think it’s got a vacuum leak. But I’ll get it dialed in.
Thanks for watching and commenting!!
🎉🎉 Looking forward to seeing more 🎉🎉
Thank you!!
Having that engine run stand is an awesomething you're doing some great troubleshooting? And I would think maybe checking for that. Vacuum leak while on the stand would be a good idea I will look forward to seeing more
It has come in really handy over the years!!
Sounds good .You just had shit for luck on the initial fire up! I am still wanting a muncie in that nova. NO AUTO!!!!!
I’ll get the bugs worked out.
Following along on this. Got a new subscriber my friend
That’s awesome!! Thank you!! Good to have you!!
That must be Loud in your garage, I bet your neighbors like that! A few suggestions is get some header mufflers and that will help you hear what is going on. You might have a vacuum leak with that old manifold, you could try a thicker intake gasket like the 1266. Just suggestions, you will get it figure out.
I think you might be right about the gaskets. The normal 1205 1206 and 1207 are good gaskets but are kinda thin.
My neighbors are all super cool! They love it!! The guy across the street and to the left has a 500 cubic inch big block 68 Chevelle I built the engine for. So they are use to it!!
Thanks for watching and commenting!!!
Troubleshooting is my favorite. Making one adjustment at a time until it runs well is great fun. I had a faulty module in a brand new Summit Racing distributor but only found the problem many years later because it can't be a new part problem right?
It only has used parts!! lol.
@@tackettshoh 😂
What aŕ the cam specs at 50 duration lift and lsa ànd the rpm range if yoù dont mind me asking also i think my rods are s6tock 400 rods and they are down in the hole abot 0.40 thousands so if i use 5.7 rod out of a 350 how much wìll it bring my piston up in the hole any help would be appreciated im trying to build this 406 on a budget. And not looking to buy 6 inch rods and piston so does 0.45 thousands sound right i used a straight edge ànd feeler gauge to measure how far down it was ìñ the hole id like to havè at least 10.5 to 11.1 compression with either a 64 cc or 70cc promaxx 315 heads ĺike i said any help would be appreciated thanks in advance your friend from Louisiana rick 427
What’s up Rick!! The cam in this engine is 242 @ 50 .555 lift on a 108 LSA.
A stock length 350 rod is 5.7 inches. And a stock 400 rod is 5.565
Hope that helps!! Thanks for watching!!!
Going to 5.7" rods from sbc 400 rods that are 5.565" would raise the pistons you have .135" so .135 - .040 = .095" out of the hole.
Either stick with the sbc 400 rods and have the block decked .040" or get new pistons for the 5.7" rods.🤷 Or you can get very expensive thick head gaskets that would cost as much if not more than having the block decked.(Have the deck milled, the deck is what the heads are bolted to for people reading that aren't sure if the terminology)
Beware of machine shops that ask you to mock up the block to see where the deck height is in the 4 corners. Those shops aren't going parallel off of the mains.😎👍
@@itseithergonnaworkoritaint7852 very true.
Can we put this in a Corolla?
Of course we can!!!
Is the stock crank internally balanced? Looks like the balancer and flywheel don't have counterweights for a stock external balanced crank
No it’s externally balanced. Balancer and flexplate have a lot of weight added.
@@tackettshoh I figured it was but couldn't see any counterweights and the balancer looked smaller than stock from the video
@@krazyphucker369 I show them up close in the two previous videos. Everything was balanced but externally.
@@tackettshoh thanks i'll have to watch those only watched the one video
@@krazyphucker369 that would be awesome!! Thank you!
Old school cars, old school motors...... makes sense you used an old school drill for priming
lol. That’s how I roll!!