Whipple Spark Plugs

[GoFaster06]

Are the Ford Racing spark plugs that came with the Whipple HO kit a 1 or 2 piece design? How often should they be changed, nothing in Whipple manual about frequency.

 

[stkjock]

What's the part number?

 

[BruceH]

My whipple manual said to change them every year along with the fuel filter. They are hto plugs gapped at .032". Two piece design. You won't have any problems with them, two piece isn't a concern. HTO plugs are all I've ever run with older style heads and forced induction. Just be aware that forced induction is hard on spark plugs and they need to be changed more frequently than an na motor.

 

[GoFaster06]

What's the part number?

Part # column is blank, just says vendor: Ford, Description: spark plugs (.032 gap)

 

[GoFaster06]

My whipple manual said to change them every year along with the fuel filter. They are hto plugs gapped at .032". Two piece design. You won't have any problems with them, two piece isn't a concern. HTO plugs are all I've ever run with older style heads and forced induction. Just be aware that forced induction is hard on spark plugs and they need to be changed more frequently than an na motor.

What year is your car? Worried about 2 piece since there have been so many issues with 2 piece OEM breaking off. Would like to hear if other Whipple owners that have changed plugs have had good/bad experiences. Do you have any part # for those HTO plugs?

 

[BruceH]

What year is your car? Worried about 2 piece since there have been so many issues with 2 piece OEM breaking off. Would like to hear if other Whipple owners that have changed plugs have had good/bad experiences. Do you have any part # for those HTO plugs?

My car is a 2008 that was built 3 weeks before the change to new heads. I'm currently on frpp cnc heads that use the new plug design.

You will be hard pressed to find someone who has had problems with hto plugs.

Item NumberUOMQtyMSRPPriceM-12405-3V0 Each$140.00$140.00
$82.50 MODULAR 3-VALVE ZERO DEGREE SPARK PLUG
M-12405-3V0* For use in engines with higher than stock cylinder combustion pressures Unique design is proprietary to Ford 3-valve engines Only available through Ford Racing One heat range colder than the stock Mustang GT plug Two heat ranges colder than the stock 5.4L truck 3-valve engine Sold in engine sets of 8
*special order item, allow 7-10 days for delivery

 

[GoFaster06]

My car is a 2008 that was built 3 weeks before the change to new heads. I'm currently on frpp cnc heads that use the new plug design.

You will be hard pressed to find someone who has had problems with hto plugs.

Item NumberUOMQtyMSRPPriceM-12405-3V0 Each$140.00$140.00
$82.50 MODULAR 3-VALVE ZERO DEGREE SPARK PLUG
M-12405-3V0* For use in engines with higher than stock cylinder combustion pressures Unique design is proprietary to Ford 3-valve engines Only available through Ford Racing One heat range colder than the stock Mustang GT plug Two heat ranges colder than the stock 5.4L truck 3-valve engine Sold in engine sets of 8
*special order item, allow 7-10 days for delivery

Thanks for the part #, do most vehicle shops have the special gap tool needed to gap these plugs or do I need to buy one?

http://www.blowbyracing.com/bbrspplgato2.html

 

[BruceH]

Thanks for the part #, do most vehicle shops have the special gap tool needed to gap these plugs or do I need to buy one?

http://www.blowbyracing.com/bbrspplgato2.html

It can be done without the tool. FRPP plugs are pregapped to .032. The only ones I've had to gap were Autolite hto.

All you need to gap them is a vise, screwdriver or other hard, round tool, and spark plug socket. Here is a writeup I did for cjponyparts. They did a little editing with the hotlinks.

http://www.cjponyparts.com/mustang-...et-2005-2008-installation-instructions/a/333/