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World Jr vs GT40's

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Old 09-20-2010, 10:08 AM
  #1  
Bobert
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Default World Jr vs GT40's

AS ya'll know, im looking for iron heads to go with my new gt40 tubular intake.

I found a guy selling World Jr Heads that have been professionally ported ( he's including flow charts ) with springs for the f cam ( i have no idea what springs these are )

The valves are 1.94/1.60

I have been doing some research but there's no comparison on these heads with gt40s.

I was wondering what your experiences are with them?

He is asking 500 for the heads w/o rockers. Which is fine i have a set.

The only thing i have read thats bad about the heads is the port work, so if they have been ported i should be alright im assuming?

( Also, will world JR bolt up fine to a GT40 lower? )

Thanks for the input!
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Old 09-20-2010, 10:30 AM
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Bubba 95SN
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SBF heads should bolt to SBF intake no problem.
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Old 09-20-2010, 10:31 AM
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5.0kid
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world jr for the win dont even consider the gt40s they are marginal above stock, trust me i got a set on my motor.
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Old 09-20-2010, 06:56 PM
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Bobert
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Superb!

Im going to have to take a look at them then!

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Old 09-20-2010, 08:52 PM
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nitrous_bob
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my buddy had the exact same setup. box stock tubular and started with mild ported gt40's, with a 125 shot he went around 11.60-11.90

swapped to the windsor jr's and gained some. he also went to a c4 so i cant for sure what he picked up... but it was worth it to him

match the heads to the lower... you may or may not see a little "step" where they meet
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