big valves, big cam, stock pistons?

Mr. Rustypwnz

Advanced Member

Jun 1, 2005

1,761

63

69

indianapolis/ valdosta ga

Nov 11, 2009

#1

• Nov 11, 2009

• #1

ok so im really wandering, how big of lift you can go with without getting piston to valve love making..

2.02 valves in the head and around a .540 lift cam, i know duration comes into effect, but i dont have it all yet, so what would be t3h max? I dont even know if the engine has different pistons but just to be safe..

 

tannerc91gt

This last 25% is foreign territory at this point

Founding Member

Nov 29, 1999

4,392

2,967

234

Indiana

Nov 11, 2009

#2

• Nov 11, 2009

• #2

What motor? What pistons? Do they have reliefs cut? Lot of variables

 

Mr. Rustypwnz

Advanced Member

Jun 1, 2005

1,761

63

69

indianapolis/ valdosta ga

Nov 11, 2009

#3

• Nov 11, 2009

• #3

stock bottom end 302, pro comp heads 180cc or 190cc, 58cc, b cam, eddy performer intake, holley dp'er, long tubes, no accesy's other than water pump and alt, 373-4.10's.

im looking at a stage 2 tfs cam, when the time is right, just seeing if it might need notched, this is the biggest ive been with valves and cams (not b cam)

 

stykthyn

I want to measure mine. It doesn't look that tall.

15 Year Member

Jul 6, 2006

5,232

2,652

223

gainesville

Nov 12, 2009

#4

• Nov 12, 2009

• #4

I'd go with an Anderson cam over the TFS2. They seem to have a cam grind for any application. I wish I had bought one of those before I got my TFS1.

 

blackened88lx

Active Member

Aug 9, 2006

0

4

28

Connecticut

Nov 12, 2009

#5

• Nov 12, 2009

• #5

There's no specific limit. There are so many other variables that you aren't looking at. Cam timing has a lot to do with it as well. Clay the pistons and check, that's the only way to do it.

 

nick6690

Member

Mar 2, 2008

147

1

17

McDonough, GA

Nov 12, 2009

#6

• Nov 12, 2009

• #6

you wont be able to do it with 2.02 valves i think they hit even with the stock cam.
i had to cut my pistons it was a freakin PITA!!!

 

bentley429isBAC

10 Year Member

Jul 23, 2009

922

188

84

CT

Nov 12, 2009

#7

• Nov 12, 2009

• #7

Just take a grinder to the pistons.

 

blackened88lx

Active Member

Aug 9, 2006

0

4

28

Connecticut

Nov 12, 2009

#8

• Nov 12, 2009

• #8

Hahaha. Take some pictures of yours.

 

nick6690

Member

Mar 2, 2008

147

1

17

McDonough, GA

Nov 13, 2009

#9

• Nov 13, 2009

• #9

heres mine

 

Aliate X

Member

May 9, 2005

602

1

18

Rockland NY

Nov 13, 2009

#10

• Nov 13, 2009

• #10

trick flow cams suck ass compared to custom...well everything sucks ass compared to custom. glad I ditched my TFS1

 

stangboy

Founding Member

Aug 31, 1999

3,932

469

194

New Orleans, LA

Nov 14, 2009

#11

• Nov 14, 2009

• #11

You're gonna have to grind on the pistons. I had an F303 in my old motor with AFR 185s and stock replacement pistons and I had to extend the side of the intake valve reliefs. I didn't have to make them deeper because the cam only made 512 lift.