97 intake

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Jan 6, 2010 | 11:03 AM

searspuller9

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97 intake

I have a 97 F350 with a bad 351 engine . I also have an 87 351 enigne that is good. will the intake an fuel injection bolt to the 87 model and/or is this an easy swap?

Jan 6, 2010 | 11:06 AM

Hitokori

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uhm? if the 87 carbed or efi? the intake will bolt to the 351 cause its the same engine

Jan 6, 2010 | 11:19 AM

searspuller9

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97 intake

the 87 is carb. but the 97 is efi. will i have any more problem puting the 87 in the 97.

Jan 6, 2010 | 12:04 PM

lew52

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The 97 is a roller motor , you would need to change the distributor gear from steel to cast to work with the 87 , also i think the heads are better on the 97. ....Lew

Jan 6, 2010 | 12:30 PM

Conanski

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The two motors are identical under the intake except for the cam, the '97 having a bigger roller cam versus the '87 flat tappet.. unless the '87 is a factory HO then they are about the same. Does it have a 4bbl carb or 2bbl?

Jan 6, 2010 | 12:56 PM

lew52

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So 87 is when they switched from the E-5 , to the E-7 heads , thats what i wasn't sure about ...is was thinking the carb motor may still have E-5s....

Jan 6, 2010 | 01:47 PM

PerfDistIgnition

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Quote:

Originally Posted by searspuller9

the 87 is carb. but the 97 is efi. will i have any more problem puting the 87 in the 97.

You will need a distributor with advance weights, springs, and a vacuum advance to control your timing.

If you decide to get a new distributor, consider our custom curved Duraspark Distributor built with our new Full Length Oil Impregnated Bronze Bushing. The full length bushing improves timing stability and spark scatter. If stock appearance is not an issue, take a look at our one piece D.U.I. Distributor. Whether you choose the Duraspark or the D.U.I., we curve each on a distributor machine based on your engine combination. Please see them at:

http://performancedistributors.com/forddistributors.htm

Also, there is now an excellent installation article on the D.U.I. Distributor on the Ford-Trucks.com site at:

https://www.ford-trucks.com/article/idx/0/358/article/DUI_Ignition_Installation_In_A_Ford_351W_V8.html

Ignition Lesson of the Month: Hystereses, the difference between the timing as the rpm and vacuum increases to the timing as rpm and vacuum decrease, needs to be kept to a minimum. A precise advance curve accomplishes this.

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