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Search: Posts Made By: 68xr7cat
Forum: Engine Tech 11-22-2014, 05:18 PM
Replies: 67
Views: 3,192
Posted By 68xr7cat
If you measure from the retainer to the spring...

If you measure from the retainer to the spring cup on a loose spring and one that tight are the measurements the same?

Should never just throw money at something, diagnoses is always way to go....
Forum: Engine Tech 11-21-2014, 12:03 AM
Replies: 67
Views: 3,192
Posted By 68xr7cat
You should have at least 80 lbs seat pressure....

You should have at least 80 lbs seat pressure. You either have the wrong spring or wrong valve train parts resulting in wrong installed height for the spring. Valve spring force has to be measured...
Forum: Engine Tech 11-19-2014, 07:59 PM
Replies: 67
Views: 3,192
Posted By 68xr7cat
Top notch or not mistakes happen and things can...

Top notch or not mistakes happen and things can be off. Only sure way to know if the TDC is true TDC is to check it. Like Colt said adjust the distributor and see if the engine responds. Old friend...
Forum: Engine Tech 11-18-2014, 11:58 PM
Replies: 67
Views: 3,192
Posted By 68xr7cat
Your problems will be found in the carb and/or...

Your problems will be found in the carb and/or ignition. Retarded ign. timing will give low vacuum, screwed up carb can too. I'd start by verifying the timing marks are correct. Slipped damper or...
Forum: Engine Tech 11-09-2014, 03:37 PM
Replies: 29
Views: 630
Posted By 68xr7cat
1,300 HP N/A? Suggest you get an A460 block,...

1,300 HP N/A? Suggest you get an A460 block, 4.60" bore and a C head or better.

I know of nobody that has made an honest 1,300 hp N/A with an A head.
Forum: Engine Tech 10-22-2014, 10:08 PM
Replies: 36
Views: 1,404
Posted By 68xr7cat
You can forget about it being a Cougar as besides...

You can forget about it being a Cougar as besides being the wrong production plant they only made 62,864 Cougars in 1971 and all the 429's ones were made early in the production run. Your block...
Forum: Engine Tech 10-22-2014, 12:49 AM
Replies: 56
Views: 3,559
Posted By 68xr7cat
So very true! LOL

So very true! LOL
Forum: Engine Tech 10-22-2014, 12:47 AM
Replies: 56
Views: 3,559
Posted By 68xr7cat
In the late '60's a good friend put a '68 T-bird...

In the late '60's a good friend put a '68 T-bird 429 in a 58 Edsel. That thing was heavy and eventually was in the 11's. Had a home made tunnel ram. He would change the cam at the track. Had a...
Forum: Engine Tech 10-22-2014, 12:29 AM
Replies: 36
Views: 1,404
Posted By 68xr7cat
As stated Z is the St. Louis factory. In '71 that...

As stated Z is the St. Louis factory. In '71 that block was used in CJ and SCJ Mustang and Cougars, as well as Torino's and Montego's. They were also used in Full size Fords that came with the PI...
Forum: Engine Tech 10-21-2014, 05:57 PM
Replies: 15
Views: 807
Posted By 68xr7cat
Most race engines get honed out .001 - .002 on...

Most race engines get honed out .001 - .002 on freshen up. Usually can reuse pistons one or two freshens if everything is good. Can get pistons in .001" increments too (custom). That gives you a lot...
Forum: Engine Tech 10-18-2014, 05:46 PM
Replies: 7
Views: 377
Posted By 68xr7cat
If you will need the other gaskets (intake, valve...

If you will need the other gaskets (intake, valve cover, front cover, oil pan, etc...) may want to buy the FRPP full gasket set M-6003-A429. Includes the head gaskets and both std and CJ intake...
Forum: Engine Tech 10-18-2014, 05:39 PM
Replies: 6
Views: 312
Posted By 68xr7cat
Looking at the gasket and that you say it was the...

Looking at the gasket and that you say it was the left (drivers side) looks like the gasket was backwards... as RM already said that would cause this problem.

Block usually can be welded and...
Forum: Engine Tech 10-18-2014, 12:54 PM
Replies: 13
Views: 628
Posted By 68xr7cat
Core plugs can come out for many reasons with...

Core plugs can come out for many reasons with fatal results. This is why converting to screw in core plugs is a good idea and it is not hard to do.

I'd convert over to the thermostat/bypass setup...
Forum: Engine Tech 10-18-2014, 12:45 PM
Replies: 7
Views: 372
Posted By 68xr7cat
and don't like KB hypers either. If your machine...

and don't like KB hypers either. If your machine work is correct you do not need zero gap rings and better off without them. KB hypers had an place 20 or so years ago when forged pistons cost a lot...
Forum: Engine Tech 10-01-2014, 05:27 PM
Replies: 8
Views: 343
Posted By 68xr7cat
Learned years ago from old time differential guy...

Learned years ago from old time differential guy is better to have more pre load than less as bearings need to roll not slide. Same with roller lifters.

If I was not going to use a break in oil...
Forum: Engine Tech 09-29-2014, 07:32 PM
Replies: 7
Views: 537
Posted By 68xr7cat
Can always notch the cylinder if need be. I've...

Can always notch the cylinder if need be. I've seen C heads made to work on a 4.36" bore.
Forum: Engine Tech 09-29-2014, 07:30 PM
Replies: 4
Views: 425
Posted By 68xr7cat
You have something hitting big time! You can take...

You have something hitting big time! You can take the flexplate and have the weights moved to the other side and rebalanced. Not a big deal. Have to wonder if a flywheel be better for what you are...
Forum: Driveline 09-28-2014, 01:12 AM
Replies: 22
Views: 829
Posted By 68xr7cat
The C-6 with the odd shaped bell was used in the...

The C-6 with the odd shaped bell was used in the 68-69 Lincolns because of the firewall/plenum. When they got rid of the unibody lincolns so went the odd ball bell. If you look on the rear of any...
Forum: Engine Tech 09-20-2014, 01:18 PM
Replies: 15
Views: 529
Posted By 68xr7cat
Problem may be a combination of what starter you...

Problem may be a combination of what starter you are using and if they rotated the mounting holes. If you use an old starter from the 70's and it works then that is what the issue is.
Forum: Engine Tech 09-20-2014, 01:14 PM
Replies: 6
Views: 249
Posted By 68xr7cat
What rocker studs do you have? Measure from the...

What rocker studs do you have? Measure from the guide plate to the end of the stud and post up the result.
Forum: Driveline 09-16-2014, 12:35 AM
Replies: 20
Views: 820
Posted By 68xr7cat
What I am wondering about the direct piston is if...

What I am wondering about the direct piston is if it is working correctly to not let fluid be trapped in the drum when not applied and the centrifugal force start applying the piston. That is what...
Forum: Driveline 09-15-2014, 12:23 AM
Replies: 20
Views: 820
Posted By 68xr7cat
Based on what you said most likely the direct is...

Based on what you said most likely the direct is applying when you shift to 2nd. I'd be looking at the piston real close.
Forum: Engine Tech 09-14-2014, 09:35 PM
Replies: 67
Views: 3,192
Posted By 68xr7cat
Sorry to hear of all the problems you are having....

Sorry to hear of all the problems you are having. If I was closer I'd come up to help. Is good that there is no metal in the oil and filter. What kind of oil pressure gauge do you have on it? Two...
Forum: Engine Tech 09-14-2014, 09:29 PM
Replies: 67
Views: 3,192
Posted By 68xr7cat
I measured valve spring in an engine that was not...

I measured valve spring in an engine that was not run and sat better part of 10 years and was same as when it was assembled so would not say it is always that case. Most problems with valve springs...
Forum: Engine Tech 09-14-2014, 09:24 PM
Replies: 4
Views: 233
Posted By 68xr7cat
Sounds like GM had a better idea after all... LOL

Sounds like GM had a better idea after all... LOL
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