1999 GT-40 crate w/ B cam and 1.6 RR Valve spring ????

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MustangBill87

New Member

Jul 14, 2009

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Dec 13, 2009

#1

• Dec 13, 2009

• #1

Whats up guys, I have a 1999 gt-40 crate w/ B-303 cam, 1.6 svo RR, and svo aluminium heads I know on these early versions FRPP put the heads and cam on a factory long block, are the valve springs they put in these good, I have been reading about valve floating problems around 5000 RPM's is this a common problem on these if so what should I replace them with.
Thanks for any help!

 

2000xp8

SN Certified Technician

Aug 8, 2003

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Dec 13, 2009

#2

• Dec 13, 2009

• #2

With a b cam and gt40 crate engine, you probably won't have any valve float.

 

Tanus

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Dec 11, 2009

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A to the Z

Dec 13, 2009

#3

• Dec 13, 2009

• #3

2000xp8 said:

With a b cam and gt40 crate engine, you probably won't have any valve float.

Click to expand...

+1, it'll spin it up to 6Gs without a problem, (if its all properly machined and put together right)

 

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Mike in Texas

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Nov 7, 2005

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Dec 14, 2009

#4

• Dec 14, 2009

• #4

1999 GT-40 crate w/ B cam and 1.6 RR Valve spring

I have a 1999 gt40 crate with e303 cam and gt40x heads. No problem at all getting 6000 rpms before or after the supercharger was added.

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

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Dec 14, 2009

#5

• Dec 14, 2009

• #5

B cam has pretty low lift. Should be fine