TFS Head install

QDRHRSE

New Member

Dec 31, 2002

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Palmdale, CA

May 29, 2004

#1

• May 29, 2004

• #1

I'm putting in a set of ported twisted wedge heads. I have questions. Do I need a special length pushrod and how much piston to valve clearance do I have? My cam has .533/.544 lift. I know I'm cutting it close. I have a basically stock bottom end. Anybody? I know as recently as yesterday somebody said .540 is the max but I've seen .550 advertised. Please help. TFS heads are a PITA...you need special tapered head bolts too.

 

ECU5.0

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Jan 10, 2004

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raleigh, nc

May 29, 2004

#2

• May 29, 2004

• #2

im pretty sure you need new pushrods....thats about all i can help

 

QDRHRSE

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Dec 31, 2002

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Palmdale, CA

May 29, 2004

#3

• May 29, 2004

• #3

Thanks. Summit said 6.70 . Stock is 6.2 I think. I appreciate your help!

 

houstonstangguy

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Mar 16, 2002

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Houston, Texas

May 29, 2004

#4

• May 29, 2004

• #4

i think my pushrods were 6.75"

also you might wanna ask about the stock springs on those heads. i know you dont have as much lift as i do but i had to get the upgraded springs and I cant remember where the stockers end lifting. make sure you check because im thinking it was like .530/.540 area, of course it was 7 months ago so i cant remember, i just know i needed them.

good luck

 

jrichker

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Mar 10, 2000

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Dublin GA

May 29, 2004

#5

• May 29, 2004

• #5

See http://www.trickflow.com/product/twisted_wedge/info_pages/twiswedge_inst_frame.htm for help

 

blown1989saleen

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Aug 8, 2001

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oxford,pa

May 30, 2004

#6

• May 30, 2004

• #6

you should actually check PTV clearance on ALL cam installs, in this case i think youll be real close and and prolly wont be within specs. youll need 6.70"-6.75" hardened push rods.


Scott