5.0 Manifold Spacer

[CodeeB]

I'm thinking of adding a 1 in. Phenolic spacer to my 5.0 with Mustang upper to increase the runner length. Has anyone done this and was there any noticeable Torque gains ? Thanks

 

[needabronco]

First see if you have an inch of room under your hood.

 

[CodeeB]

I'm hoping to add a WH Pro Flow hood , if I can talk my wife into it and shipping is not too bad. Either way I'll check tomorrow.

 

[jurob]

save your money

 

[00gyrhed]

I Did it so I could run my original valve covers as much as anything. It also give me enough room to get my big hand up under the upper manifold. Plent of room on a 2" body lift with 302.

Don't know if it helped at all since I never ran it with out one.

 

[65 mustang]

dont think you will feel anything different.The dyno saw a 5-7 HP increase.

 

[mango]

I added 1" to help with the boiling gas issue. It helped for that. I do not use my truck properly enough to notice any torque differences. With filter and breather, I have only 1/4" of room left under the hood.

 

[justinoshea]

I'm thinking of adding a 1 in. Phenolic spacer to my 5.0 with Mustang upper to increase the runner length. Has anyone done this and was there any noticeable Torque gains ? Thanks

The increase in runner length will allow the motor to make it's peak torque number at a lower RPM. that doesn't necessarily mean it will be a bigger number. A 1" spacer will only move things about 3% or 100rpm.

 

[ransil]

I added 1" to help with the boiling gas issue. It helped for that. I do not use my truck properly enough to notice any torque differences. With filter and breather, I have only 1/4" of room left under the hood.

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Boiling gas with EFI?????