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VAVLE HEIGHT SETUP RANGE FOPR OEM dove 429 HEADS

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Post  mgawat May 3rd 2011, 5:49 pm

TRYING TO SETUP MY VALVE TRAIN ON A STOCK SET OF dOVE HEADS WITH HARDENEND SEATS. cAN'T FIND ANY SPECIFIC VALVE HEIGHTS FOR THIS SERIES. aNYONE OUT THERE KNOW THEM?

mgawat

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Post  mgawat May 9th 2011, 3:03 pm

could really iuse this question answered...getting ready to cut in the seats and can't find the installed valve heiught in these old heads. Soimeone please help.

mgawat

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Post  dfree383 May 9th 2011, 3:03 pm

What Springs are you running?
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VAVLE HEIGHT SETUP RANGE FOPR OEM dove 429 HEADS Empty VS-703 springs with the factory intake valve

Post  mgawat May 9th 2011, 4:15 pm

running Sealed power VS-703 with the factory intake valves.

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Post  dfree383 May 9th 2011, 4:19 pm

You want to run the Valve Spring Manufactures Recomended height for the springs, may not be the OEM height. What Cam?
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VAVLE HEIGHT SETUP RANGE FOPR OEM dove 429 HEADS Empty very slight COMP Cam for extreme 4x4 (low to middle rpm)

Post  mgawat May 9th 2011, 4:24 pm

dfree383 wrote:You want to run the Valve Spring Manufactures Recomended height for the springs, may not be the OEM height. What Cam?

Recommended to use stock springs and stock intake due to longer valve stems. Problem is it was received as an empty casing and we can't find the set up info on this series 429 thunder juet. We can fine the 1972 onward heights which I don't think are the same for the earlier stle. I have the spring height setup but machine shop guy nees the valve installed heights prior to nhim cutting the seats. This is the one bit of info I can't find and all the machine shop can find is 1972 onward. HElP!

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Post  mgawat May 9th 2011, 5:33 pm

CL34-235-4 coi
Brand COMP Cams
Manufacturer's Part Number CL34-235-4
Part Type Camshaft and Lifter Kits
Product Line COMP Cams Xtreme Energy 4x4 Cam and Lifter Kits
Summit Racing Part Number CCA-CL34-235-4
UPC 36584040422

Cam Style Hydraulic flat tappet
Basic Operating RPM Range 1,400-5,600
Intake Duration at 050 inch Lift 218
Exhaust Duration at 050 inch Lift 226
Duration at 050 inch Lift 218 int./226 exh.
Advertised Intake Duration 262
Advertised Exhaust Duration 270
Advertised Duration 262 int./270 exh.
Intake Valve Lift with Factory Rocker Arm Ratio 0.514 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.524 in.
Valve Lift with Factory Rocker Arm Ratio 0.514 int./0.524 exh.
Lobe Separation (degrees) 111
Grind Number FF X4 262H-11
Computer-Controlled Compatible No
Lifters Included Yes
Lifter Style Hydraulic flat tappet
Valve Springs Included No
Retainers Included No
Locks Included No
Valve Stem Seals Included No
Timing Chain and Gears Included No
Assembly Lubricant Included Yes
Pushrods Included No
Rocker Arms Included No
Gaskets Included No
Valve Springs Required Yes
Quantity Sold as a kit.


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Post  dfree383 May 10th 2011, 7:33 am

VS-703 Springs Install @ 1.82 and give 76# and 215# @ 1.39

I would get a little better Springs IMO, Those are a little light for the cam you have shown, Something like the Ford Racing A50 ones or the suggested ones from Comp Cams would be a much better choice.

Also get the proper retainers and locks for the springs.


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Post  DanH May 10th 2011, 1:43 pm

mgawat wrote:
dfree383 wrote:You want to run the Valve Spring Manufactures Recomended height for the springs, may not be the OEM height. What Cam?

Recommended to use stock springs and stock intake due to longer valve stems. Problem is it was received as an empty casing and we can't find the set up info on this series 429 thunder juet. We can fine the 1972 onward heights which I don't think are the same for the earlier stle. I have the spring height setup but machine shop guy nees the valve installed heights prior to nhim cutting the seats. This is the one bit of info I can't find and all the machine shop can find is 1972 onward. HElP!
longer valve stems do to what ? longer tip lenght or same tip lenght and longer over all .? why the shop needs to know lenght to do the valve job is beyond me

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VAVLE HEIGHT SETUP RANGE FOPR OEM dove 429 HEADS Empty Shop problems

Post  mgawat May 10th 2011, 5:33 pm

Finally figured out what all the confusion was about. It seems (unknown to me or the shop tech) that ther early DOVE castings are about.100" thicker than the 1972 and onward models. Therefore, the valves are .100" longer to make up for it. The same valve height as the later castings will be what's required for these earlier type heads. That what I couldn't get his head around (if the valves were .100" longer than the later model heads, wouldn't that affect the valvle height about deck of head). Answer is no because of the differnce in thickness. I do agree about getting a better set of springs but initially that was one of the shop techs concern also due to the 2 differnt angles possible on these heads (30 or 45)...The 2 differnt spring retainers will take care of that problem. Thanks to everyoine for trying to help me help my shop tech./ Lastly, there was other talk about opening up the exhaust valve size but I think I would need to port it to accomplish anything woth while. My application is 4x4 truck and some towing as shown by my cam...I think the stock valvews will work just fine? Evil or Very Mad

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