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FE Power Forums => FE Technical Forum => Topic started by: mbrunson427 on April 11, 2018, 06:19:53 PM

Title: Check Out This Sonic Test
Post by: mbrunson427 on April 11, 2018, 06:19:53 PM

428 CJ Block. It's a serialized R code block.

Looks like the whole block was machined in a shifted state. If you look at the lifter bores, that's the best reference. Front of the block at the water pump inlet is super thin. Not sure how this made it into a car....

(https://s31.postimg.cc/jl0q3xxm3/IMG_4753.jpg) (https://postimages.org/)

(https://s31.postimg.cc/rqis2490b/IMG_4754.jpg) (https://postimages.org/)

(https://s31.postimg.cc/o6wucaquz/IMG_4755.jpg) (https://postimages.org/)

(https://s31.postimg.cc/9ayb4pn63/IMG_4756.jpg) (https://postimages.org/)

Title: Re: Check Out This Sonic Test
Post by: Fordman on April 11, 2018, 08:52:02 PM

wow. Yup...someone was snoozing on that one at QC....John

Title: Re: Check Out This Sonic Test
Post by: jayb on April 11, 2018, 09:01:07 PM

Probably ran in the car for over 100,000 miles.  In stock configuration they will take a lot more than you'd figure.  NOT for aftermarket performance use, that's for sure...

Title: Re: Check Out This Sonic Test
Post by: TomP on April 14, 2018, 11:09:08 PM

It looks like someone spent some money machining that before doing the sonic. Ouch. This might be the case where not checking and not knowing would have worked out better.

Title: Re: Check Out This Sonic Test
Post by: machoneman on April 15, 2018, 08:57:49 AM

Wow! That is about the only Ford engine (all types btw) I've ever seen with such a bad shift.

First gen. SBC's often had similar shifts, some not so bad and some equally as bad as yours. In fact, eyeballing any old block for lifter bore shift is commonly mentioned in hi-po SBC books, media, etc. as something to avoid when block shopping. That and visually looking for cam bore tunnel shift, another 'marker' for a block to avoid.

Title: Re: Check Out This Sonic Test
Post by: mbrunson427 on April 16, 2018, 02:00:54 PM

Quote from: TomP on April 14, 2018, 11:09:08 PM

It looks like someone spent some money machining that before doing the sonic. Ouch. This might be the case where not checking and not knowing would have worked out better.

Yes, it was an oopsies..... the one time I don't screw around with the sonic tester on a block....

It was a standard bore 428, figured it was a sure thing.

Title: Re: Check Out This Sonic Test
Post by: Stangman on April 16, 2018, 08:49:01 PM

I dont know why I cant see the sonic test

Title: Re: Check Out This Sonic Test
Post by: thatdarncat on April 16, 2018, 10:02:42 PM

Quote from: Stangman on April 16, 2018, 08:49:01 PM

I dont know why I cant see the sonic test

He's got the numbers written on the deck of the block.

Title: Re: Check Out This Sonic Test
Post by: Stangman on April 16, 2018, 11:38:07 PM

I can see it now. I was on my work computer and there was no pictures. So yeah WOW is right