Junkyard Gt40p Questions

9

93-2.3

Member

May 22, 2003

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6

PA

Apr 27, 2016

#1

• Apr 27, 2016

• #1

I'm about to do a gt40p head swap what all can I reuse on the swap and what do I need new valve train wise. Can I use the stock ho motor lifters and pushrods? What rockers can I use the gt40p explorer rockers or can I use the rockers off my e7 heads? Last question is what will I need for valve springs? Will be running either stock cam or maybe a smaller ford letter cam like b or e cam. (Yes I know there are better cams out there)

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

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Massachusetts

Apr 27, 2016

#2

• Apr 27, 2016

• #2

Bare minimum, upgrade the valve springs

 

9

93-2.3

Member

May 22, 2003

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Apr 27, 2016

#3

• Apr 27, 2016

• #3

I intend to upgrade the valve springs but want to make sure everything else works together before dropping them on, not that a bend or brake stuff

 

Black1987

my wife Bedazzled my input shaft

15 Year Member

Jan 9, 2011

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Apr 27, 2016

#4

• Apr 27, 2016

• #4

The lifters can stay unless suspect of wear. Pushrods and Rockers from the E7 or the GT40p will work. Pretty sure the pushrods are the same length, mine were, and even when I compared both engines they were. When all else fails measure, and check pushrod length with a checker.

Change the valve springs

 

stykthyn

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

15 Year Member

Jul 6, 2006

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gainesville

Apr 27, 2016

#5

• Apr 27, 2016

• #5

B cam is known to crack blocks. I would stick with the stock cam.
Upgrade the valve springs, replace the guides and retainers and bolt em back on. The rockers are the same for both head as are the pushrods. The key here is to spend as little money as possible. If you start getting crazy with the heads and valve train your costs will start approaching aluminum head territory.

 

9

93-2.3

Member

May 22, 2003

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Apr 27, 2016

#6

• Apr 27, 2016

• #6

Yep I'm trying to stay cheap just want a slight power increase and got the heads dirt cheap (60 bucks) I'm gonna do new springs, and valve seals, also lap the valves but other than that not trying to put too much into them thank you all for the I'm put so far

 

Black1987

my wife Bedazzled my input shaft

15 Year Member

Jan 9, 2011

1,064

595

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NC

Apr 27, 2016

#7

• Apr 27, 2016

• #7

93-2.3 said:

Yep I'm trying to stay cheap just want a slight power increase and got the heads dirt cheap (60 bucks) I'm gonna do new springs, and valve seals, also lap the valves but other than that not trying to put too much into them thank you all for the I'm put so far

Click to expand...

Alexparts has good cheap springs for GT40p heads

 

Reactions: SableSal, theslow5.0show, 93-2.3 and 1 other person

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93-2.3

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May 22, 2003

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Apr 27, 2016

#8

• Apr 27, 2016

• #8

I will check them out