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YOUR RESEARCH997 3.8 Intake Manifold Fit 996 3.6?
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Suggestion
Could you use your 3.6 (bored to 4.0) short block and install a complete 3.8 top end?
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Suggestion
But if by "bolt on" you mean that it is a direct swap for the factory 3.6 intake, the answer is NO.The 3.8 uses a different style AOS system, so the many connections and pipes are different.Can it be modified to fit?
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Suggestion
But if by "bolt on" you mean that it is a direct swap for the factory 3.6 intake, the answer is NO.The 3.8 uses a different style AOS system, so the many connections and pipes are different.Can it be modified to fit?
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Hi guys my engine is getting rebuilt to a LN 4.0L right now, wondering if I can upgrade (BOLT ON) my INTAKE MANIFOLD to the 997S 3.8L Style?
https://rennlist.com/forums/parts-ma...ifold-set.html
That simple sounding question is a lot more complicated than you realize.
First answer is that the m97.01 3.8 is an descendant of the m96/03 3.6, so yes, it will physically "bolt on". (uses the same bolt pattern and gasket).
But if by "bolt on" you mean that it is a direct swap for the factory 3.6 intake, the answer is NO.The 3.8 uses a different style AOS system, so the many connections and pipes are different.Can it be modified to fit? Sure...
To delve deeper ::The 3.8 m97/01 engine has a different intake ( has more volume, larger runners), has different heads (larger ports), different cams (more lift and duration) different headers ( larger tubes ). All these components work in combination to produce the power and torque curve desired.
Could you use your 3.6 (bored to 4.0) short block and install a complete 3.8 top end? Yes, this is what the X51 kit does, improved intake, heads, cams, headers.
To install only the 3.8 intake on a 3.6 (bored to 4.0) you have a 50/50 chance of helping or hurting the power/torque at different RPM's. (it's all about the total combination)
My guess would be that installing the 3.8 intake on your 3.6 (bored to 4.0) would slightly decrease lower RPM power/torque while increasing higher top end power/torque (more than the loss at lower RPM). Give it a shot and let us know !!
