My BUDGET 451 build... finally

[69 GTX]

413 Have you come up with a plan yet?

 

[Garys1969RR]

Boy, sorry to hear about your cam going south. We put an XE 274 H Comp cams in a 383, and no probs in 3 years. It's only .488/.491 lift. We used the break in oil supplied, of course.

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I also have a used 509 thats been in a couple of 440s, and now resides in a 451. Still working well. I always keep the lifters on the same lobe they started on. Hope you get your 451 cleaned up and running soon. Good luck!

 

[HT413]

413 Have you come up with a plan yet?

Nah nothing yet. The past month I've been working a lot of hours / nights / weekends. Next weekend is the last one so after that I should have some time to tear into it.

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Boy, sorry to hear about your cam going south. We put an XE 274 H Comp cams in a 383, and no probs in 3 years. It's only .488/.491 lift. We used the break in oil supplied, of course.

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I also have a used 509 thats been in a couple of 440s, and now resides in a 451. Still working well. I always keep the lifters on the same lobe they started on. Hope you get your 451 cleaned up and running soon. Good luck!

Yeah I hear ya, I'm shocked I wiped this cam out. My dad grew up pretty poor and used to take lifters out of junk yard motors if he needed to replace one. Never once had a problem.

Once we have it apart we should hopefully be able to nail down the cause.

 

[Garys1969RR]

This problem seems to occur more often than it should. I wonder if there is a way to monitor/check the cam condition during and just after the break in process. After all, there are 16 lifters/chances for this to happen in a V 8. I guess one way is to pull the valve covers after the 20 minute break in period, and see if any of the valve lash adjustments have gotten larger. Easy with a solid grind, not so easy I suppose with a hydraulic.

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Also makes you wonder why one goes bad while the rest are OK.

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I think I prefer a solid lifter cam. Then it's really easy to monitor changes, a problem will show up as valve train noise increases.

 

[khryslerkid]

Refer back to post #259

 

[lewtot184]

i really believe that some of today's profiles are just too aggressive for production tolerance blocks. weren't those voodoo cam lobes designed by "ultra-dyne Harold"? he had some pretty radical stuff if i remember correctly.

 

[Garys1969RR]

I am interested to see if you can determine a cause for the lobe/lifter failure. It makes sense that a piece of metal flashing scraping the bottom of a lifter for awhile could initiate a breakdown of the lifter face. Please let us know what the investigation reveals.

 

[TetanusShot]

Any updates on the 451?

 

[69 GTX]

Yep, been a while.

 

[HT413]

Nothing yet, fellas. Been working on the house and rental property but just finished them up, so the plan is to pull the motor perhaps by next week or so.

 

[69 GTX]

Understood, gotta work to play.....

 

[Mike67]

plan is to pull the motor perhaps by next week or so.

So do you think you are going to be able to salvage it and just do a clean up and replace the cam or do you think you're going to take it all the way down? I saw where you have your dolley ready to go...either way it still sucks I guess...

 

[HT413]

So do you think you are going to be able to salvage it and just do a clean up and replace the cam or do you think you're going to take it all the way down? I saw where you have your dolley ready to go...either way it still sucks I guess...

At this point, no idea. I don't have a lot of experience wth this sort of thing, so once I pull the motor hopefully i can have it inspected sooner than later and get it all back together.

 

[HT413]

been a while, but better late than never. Engine is at the builder's and will be ready in a couple weeks?

In the mean time, gussied up the ol 727 and add a fancy new pan from Trick Flow (made in the US!) and painted it body color. Even had a buddy weld in a bung for my temp sender.

 

[miller]

Hope you included the pickup extension!

 

[rrTor-Red]

Looks good HT413!

 

[HT413]

Hope you included the pickup extension!

Yep!

 

[GrabberOrange69]

Glad to see your project moving forward! I like the build.

 

[Bighead440]

I'm using the old TRW 6-pack pistons, just below zero deck with milled (84cc) "902" casting heads (basically 346/452's) and my own home-brew Comp grind. It uses the XE285HL intake lobe, but I ran a bigger (251*/.545") exhaust lobe and spread the LSA to 112* for my huge-by-giant C-body wagon.

 

[Bighead440]

I'm using the old TRW 6-pack pistons, just below zero deck with milled (84cc) "902" casting heads (basically 346/452's) and my own home-brew Comp grind. It uses the XE285HL intake lobe, but I ran a bigger (251*/.545") exhaust lobe and spread the LSA to 112* for my huge-by-giant C-body wagon.View attachment 437026

Sounds pretty good to me: