429 issues !!

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Re: 429 issues !!

Post  gt350hr on October 3rd 2014, 2:20 pm

I would have too, LOL

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Re: 429 issues !!

Post  IDT-572 on October 3rd 2014, 2:54 pm

Cut him some slack guys , he just got on here before he had all the answers to the questions we bombed him with.

He is getting it now.

All I know is, and as Randy has alluded to is there is no way he could run the iron heads and swap to the FMS SCJ's without having bent valves or double relief cuts, with either set of cams he has run.

And with him saying the valves are good to go, then he has had the SCJ reliefs cut in them.
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Re: 429 issues !!

Post  the Coug on October 3rd 2014, 3:09 pm

I would suggest you pull the heads, check the valves, check the pistons, pull the timing cover and check the cam and chain, to see where it is set, advanced or retarded. then clay it up and see how much Valve to piston clearance you have, and go from there.....
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Re: 429 issues !!

Post  gt350hr on October 3rd 2014, 4:52 pm

I'm just scratching my head as to how this works. A re cut of the valve pocket ( in the case of the two cylinder heads used) would be VERY obvious. The vr moves more from the "two o'clock position" towards "one o'clock" when switching to the current aluminum SCJ head from an oem iron version. I'm staying tuned to see how it has been accomplished.

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Re: 429 issues !!

Post  IDT-572 on October 3rd 2014, 4:53 pm

Very easy to see.............. Big move.
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Re: 429 issues !!

Post  richter69 on October 3rd 2014, 5:08 pm

Dang i was hopin Coug was gonna lay it on a little heavier than that..... Im disappointed.
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Re: 429 issues !!

Post  gt350hr on October 3rd 2014, 5:29 pm

IDT-572 wrote:Very easy to see.............. Big move.






I know from experience , I had to do it a time or two. LOL

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Re: 429 issues !!

Post  linearfab on October 4th 2014, 2:39 am

the Coug wrote:He also said his old cam was a solid Flat tappet, and then it was a Roller, I was at the track a while back and a  guy was having troubles with his car so I thought I would help him out, so I ask him where his timing was? ( he pointed to his distributor and said right there)  I turned and left

No ,i said I have had 2 roller cams with these heads.(aluminum scj heads in the pics i posted ) One was damaged from  Lifter failure ..  it had a solid flat tappet when  it had iron heads  ..  . The only grey area is the pistons .


Last edited by linearfab on October 4th 2014, 3:05 am; edited 1 time in total

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Re: 429 issues !!

Post  linearfab on October 4th 2014, 2:49 am

gt350hr wrote:     I'm just scratching my head as to how this works. A re cut of the valve pocket ( in the case of the two cylinder heads used) would be VERY obvious. The vr moves more from the "two o'clock position" towards "one o'clock" when switching to the current aluminum SCJ head from an oem iron version. I'm staying tuned to see how it has been accomplished.

They very well could be. Recut . All i said was to my knowledge i dont remember them being recut . Sure i looked at the pistons with the heads off to make sure there werent any marks that the piston and valves wher making contact .  But im not an engine builder. So im not gunna instantly pick out that the valve reliefs had been recut to work with the other heads  .  If i get some time in the next few weeks ill take the front cover off and have the cam timing checked

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Re: 429 issues !!

Post  linearfab on October 4th 2014, 8:40 am

Did some digging in old receipts. Pistons are trw L2366F-40 . But i cant find the last build receipt from the last go around when we changed rods , heads cam and intake and had the lifter bores bushed . If they wher cut. It was then

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Re: 429 issues !!

Post  the Coug on October 4th 2014, 9:01 am

you have a 50/50 chance of it being right  what chances are you willing to take? I personally would check it to make sure......

I have taken a 50/50 chances before and come out ok but I like better odds, with this much money at stake I would like to be way more sure than I think its right Sad
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Re: 429 issues !!

Post  res0rli9 on October 4th 2014, 9:20 am

its already out, just pull the heads and see... easy Smile

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Re: 429 issues !!

Post  QtrWarrior on October 4th 2014, 9:30 am

JMHO..

If the pistons had not been re-cut with the head change, for that big roller, it would not have run long...
Much less, be able to make it to the track and run, all be it slower...

Can you say.. bent pushrods and valves ??? Rolling Eyes
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Re: 429 issues !!

Post  linearfab on October 4th 2014, 9:32 am

the Coug wrote:you have a 50/50 chance of it being right  what chances are you willing to take? I personally would check it to make sure......

I have taken a 50/50 chances before and come out ok but I like better odds, with this much money at stake I would like to be way more sure than I think its right Sad



I plan on checking it out for sure.. but if i take this thing apart and it all checks out with no extra special stuff . U all owe me 5$ ! Via pay pal .. hahahahah .

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Re: 429 issues !!

Post  linearfab on October 4th 2014, 9:34 am

res0rli9 wrote:its already out, just pull the heads and see... easy Smile


Unfortunately. Its still in the car and runs and drives fight . Just slow Neutral

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Re: 429 issues !!

Post  linearfab on October 4th 2014, 9:40 am

QtrWarrior wrote:JMHO..

If the pistons had not been re-cut with the head change, for that big roller, it would not have run long...
Much less, be able to make it to the track and run, all be it slower...

Can you say.. bent pushrods and valves ??? Rolling Eyes
.

Haha man . I get it. IF that was the case .... Im just sayin i have no proof that they have been recut. No paper work. And no memory of it happening . I do have proof that There are no bent valves or push rods ..

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Re: 429 issues !!

Post  linearfab on October 4th 2014, 9:44 am

Are any of you guys local to the st.louis area ?

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Re: 429 issues !!

Post  rmcomprandy on October 4th 2014, 9:58 am

linearfab wrote: Are any of you guys local to the st.louis area ?

Contact Dave McClain in Cuba, MO at McClain Automotive.

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Re: 429 issues !!

Post  linearfab on October 4th 2014, 10:45 am

i found an old pic of the motor with out the heads .


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Re: 429 issues !!

Post  supervel45 on October 4th 2014, 3:06 pm


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Re: 429 issues !!

Post  FalconEh on October 4th 2014, 4:23 pm

The pistons on the block picture should make contact, unless you are using the shorter pushrods from the iron headed motor, and you really have 4?? lift. Did you measure of change the pushrods when you changed the heads?
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Re: 429 issues !!

Post  rmcomprandy on October 4th 2014, 4:57 pm

FalconEh wrote:The pistons on the block picture should make contact, unless you are using the shorter pushrods from the iron headed motor, and you really have 4?? lift. Did you measure of change the pushrods when you changed the heads?

He doesn't KNOW what he has but, obviously something aint together right; (presuming those are the pistons he STILL has)..

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Re: 429 issues !!

Post  linearfab on October 4th 2014, 6:06 pm

FalconEh wrote:The pistons on the block picture should make contact, unless you are using the shorter pushrods from the iron headed motor, and you really have 4?? lift. Did you measure of change the pushrods when you changed the heads?

Ya they wher changed . Also id think if it was too short id have some sort of geometry issue or lash problems. Or valvetrain noise or something..


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Re: 429 issues !!

Post  linearfab on October 4th 2014, 6:13 pm

rmcomprandy wrote:
FalconEh wrote:The pistons on the block picture should make contact, unless you are using the shorter pushrods from the iron headed motor, and you really have 4?? lift. Did you measure of change the pushrods when you changed the heads?

He doesn't KNOW what he has but, obviously something aint together right; (presuming those are the pistons he STILL has)..


I do know that when i had the heads off it didnt have 2 reliefs like shown in the pic . Lol . And those are the same pistons in my pic that are still in the motor

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Re: 429 issues !!

Post  rmcomprandy on October 4th 2014, 8:03 pm

Given all the information which has been presented here ... if it is all correct, I suspect that the camshaft is installed VERY retarded.  
But, would that big of a camshaft even run at a tooth retarded...?

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