Go Back   The Supercar Registry > General Discussion > Supercar/Musclecar Discussion


Reply
 
Thread Tools Display Modes
  #1  
Old 12-12-2016, 06:56 PM
HawkX66's Avatar
HawkX66 HawkX66 is offline
Senior Member
 
Join Date: Sep 2015
Location: VA/MA
Posts: 1,021
Thanks: 1,015
Thanked 222 Times in 132 Posts
Default Well, this sux. So much for my 502...

As usual, a deal that is too good to be true is... So there were a few things that weren't adding up on my new motor after I pulled the cam to replace it with a cam with a fuel pump lobe. I decided to pull a head to verify a few things for myself and not trust what the builder told my friend. It turns out, everything internal is basically stock GM otc rebuild truck crap. 2.09/1.72 valves, not 2.19/1.88. The cam lift I measured to be ~.462/.462. Yes, that's after multiplying it by the 1.7 rocker ratio... Stock 4.250 stroke so it's a 494ci, not a 502 or 508. I'm out of my mind right now. I do believe my friend didn't know. I'm ready to give the whole thing back, but he offered to set me up with some good aluminum heads and a brand new Howard or Lunati cam of my choice from the "builder". The lower end all looks brand new and it's a seriously beefy 4 bolt main, 489ci. .020 over.
The only thing I'm worried about is that I have flat top pistons. Most aluminum heads have 110-120cc chamber volume. I don't think that would work with flat tops no matter their volume for compression would it?
Considering it's "only" $2,500 for what will end up being a good motor with a little more of my labor, what would you do? I'm thinking the smart thing to do is give them a chance to make it right. What about the pistons though?

Current pistons:



New double roller:

<a href="https://flic.kr/p/NT1KYv" rel="nofollow" target="_blank">

Lower end:

[url=https://flic.kr/p/Nj4zV6]</a>
__________________
-Dave
Semper Fi!

69 Camaro SS396 L34 X66
Reply With Quote
Click here to view all the pictures posted in this thread...
  #2  
Old 12-12-2016, 07:13 PM
MosportGreen66's Avatar
MosportGreen66 MosportGreen66 is offline
Yenko Contributing Member
 
Join Date: Nov 2002
Location: NY, NY
Posts: 8,606
Thanks: 1,028
Thanked 924 Times in 417 Posts
Default Re: Well, this sux. So much for my 502...

Dave, here is my take on the situation. Having worldly experience in getting lied to about engine internals, the only way you're going to get exactly what you want is to do it right yourself. The builder in this situation has yet to deliver on his word and I wouldn't trust him going further regardless of his promises. There are plenty of good guys on this forum who can help with procuring, sourcing and engineering an action plan to make your motor build happen. Look to the good guys for help.

Dan
__________________
Follow me on Instagram: https://www.instagram.com/mbcgarage/
Reply With Quote
  #3  
Old 12-12-2016, 07:50 PM
earntaz earntaz is offline
Yenko Contributing Member
 
Join Date: Mar 2010
Location: Republic of Texas
Posts: 4,620
Thanks: 6,842
Thanked 647 Times in 360 Posts
Default Re: Well, this sux. So much for my 502...

Dave -- I don't know what intake you will be running but if you were to use the Edelbrock alum heads with the 100 CC (approx) chamber your compression would come up some -- flat tops are not a bad deal if matched with the right head.

Have to agree with Dan -- it really sucks when you're lead down the primrose path ... TAZ
__________________
You've never lived until you've almost died -- for those who fight for it, life has a flavor the protected will never know!
Reply With Quote
  #4  
Old 12-12-2016, 08:14 PM
427TJ's Avatar
427TJ 427TJ is offline
Yenko Contributing Member
 
Join Date: Jan 2004
Location: PNW
Posts: 5,578
Thanks: 1,007
Thanked 287 Times in 160 Posts
Default Re: Well, this sux. So much for my 502...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: MosportGreen66</div><div class="ubbcode-body">Dave, here is my take on the situation. Having worldly experience in getting lied to about engine internals, the only way you're going to get exactly what you want is to do it right yourself. The builder in this situation has yet to deliver on his word and I wouldn't trust him going further regardless of his promises. There are plenty of good guys on this forum who can help with procuring, sourcing and engineering an action plan to make your motor build happen. Look to the good guys for help.

Dan </div></div>

All due respect, I got screwed by a forum member on an engine that I took his word on. As Ronald Reagan said, &quot;Trust but verify.&quot;
Reply With Quote
  #5  
Old 12-12-2016, 09:15 PM
scuncio's Avatar
scuncio scuncio is offline
Yenko Contributing Member
 
Join Date: Oct 2000
Location: Michigan
Posts: 13,427
Thanks: 2,369
Thanked 5,961 Times in 2,907 Posts
Default Re: Well, this sux. So much for my 502...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 427TJ</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: MosportGreen66</div><div class="ubbcode-body">Dave, here is my take on the situation. Having worldly experience in getting lied to about engine internals, the only way you're going to get exactly what you want is to do it right yourself. The builder in this situation has yet to deliver on his word and I wouldn't trust him going further regardless of his promises. There are plenty of good guys on this forum who can help with procuring, sourcing and engineering an action plan to make your motor build happen. Look to the good guys for help.

Dan </div></div>

All due respect, I got screwed by a forum member on an engine that I took his word on. As Ronald Reagan said, &quot;Trust but verify.&quot; </div></div>

As did I...uncool.
Reply With Quote
  #6  
Old 12-12-2016, 09:44 PM
RST's Avatar
RST RST is offline
Yenko Contributing Member
 
Join Date: Jan 2014
Posts: 596
Thanks: 119
Thanked 102 Times in 47 Posts
Default Re: Well, this sux. So much for my 502...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: MosportGreen66</div><div class="ubbcode-body">Dave, here is my take on the situation. Having worldly experience in getting lied to about engine internals, the only way you're going to get exactly what you want is to do it right yourself. The builder in this situation has yet to deliver on his word and I wouldn't trust him going further regardless of his promises. There are plenty of good guys on this forum who can help with procuring, sourcing and engineering an action plan to make your motor build happen. Look to the good guys for help.

Dan</div></div>

Plus 2 ............ if they will take the motor back that is the best bet. Start fresh and build exactly what you want .......... no mater what you do, you will never be happy with this motor.

Just my two cents ........ good luck.
__________________
1968 1/2 Cougar 428 R Code, Cobra Jet, 4 SPD, Red Interior in restoration at MASCAR to be unveiled by Kevin Marti at the MCACN 2020

1970 Top Secret Very Special Muscle Car in restoration by MASCAR to be unveiled at MCACN 2020

Reply With Quote
  #7  
Old 12-12-2016, 09:47 PM
earntaz earntaz is offline
Yenko Contributing Member
 
Join Date: Mar 2010
Location: Republic of Texas
Posts: 4,620
Thanks: 6,842
Thanked 647 Times in 360 Posts
Default Re: Well, this sux. So much for my 502...

AGREE ^^^^^^^^^
__________________
You've never lived until you've almost died -- for those who fight for it, life has a flavor the protected will never know!
Reply With Quote
  #8  
Old 12-13-2016, 01:35 AM
MosportGreen66's Avatar
MosportGreen66 MosportGreen66 is offline
Yenko Contributing Member
 
Join Date: Nov 2002
Location: NY, NY
Posts: 8,606
Thanks: 1,028
Thanked 924 Times in 417 Posts
Default Re: Well, this sux. So much for my 502...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: scuncio</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 427TJ</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: MosportGreen66</div><div class="ubbcode-body">Dave, here is my take on the situation. Having worldly experience in getting lied to about engine internals, the only way you're going to get exactly what you want is to do it right yourself. The builder in this situation has yet to deliver on his word and I wouldn't trust him going further regardless of his promises. There are plenty of good guys on this forum who can help with procuring, sourcing and engineering an action plan to make your motor build happen. Look to the good guys for help.

Dan </div></div>

All due respect, I got screwed by a forum member on an engine that I took his word on. As Ronald Reagan said, &quot;Trust but verify.&quot; </div></div>

As did I...uncool. </div></div>

As did I. Shame of it, the POS still posts here. Nonetheless, the forum members I was referencing above are quality with outstanding reputations. I do not want to turn this into a bashing session nor will I let it. I stand by my response - start from scratch, seek to involve good guys wit references to back up builds.

Dan
__________________
Follow me on Instagram: https://www.instagram.com/mbcgarage/
Reply With Quote
  #9  
Old 12-13-2016, 02:22 AM
ban617 ban617 is offline
Senior Member
 
Join Date: Dec 2010
Location: ohio
Posts: 433
Thanks: 5
Thanked 14 Times in 14 Posts
Default Re: Well, this sux. So much for my 502...

What block did they use ? 454 ? Or 8.1 cause the 8.1 was a 496 stock I believe?
Reply With Quote
  #10  
Old 12-13-2016, 03:46 AM
Kurt S Kurt S is offline
Yenko Contributing Member
 
Join Date: Aug 2000
Location: Ann Arbor, MI
Posts: 2,963
Thanks: 2
Thanked 601 Times in 296 Posts
Default Re: Well, this sux. So much for my 502...

If you are picking out the heads and they are supplying them, then staying the path seem reasonable.
Assuming you are fine with putting it together. I don't think I'd trust the builder more than that....
__________________
Kurt S - CRG
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 06:09 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.

O Garage vBulletin Plugins by Drive Thru Online, Inc.