using 351 headers on 302. on an 89

dastang2

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Dec 11, 2003

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Jan 20, 2006

#1

• Jan 20, 2006

• #1

since i can't find any answers using search i will ask here. i have some 351 swap headers and want to know if i can use them on a 302 for now
one is on and the other hits the starter. i have an adjustable starter and have not tried to adjust it yet if the block will let me but i want to see if it has been done. they are equal length shorties.

 

dastang2

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#2

• Jan 20, 2006

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does anybody know this

 

vristang

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Mar 31, 2005

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Jan 21, 2006

#3

• Jan 21, 2006

• #3

Interesting question.

Sorry I don't have a simple yes/no answer for you.

If you do get sufficient clearance with the starter, the other likely issue is getting the headers to mate up with the midpipe. You may have to pull the midpipes inboard to get it bolted together.

The stock starter could be replaced with a small diameter starter. Powermaster makes one, and I am sure there are others out there.

Good Luck
jason

 

89CobraGT

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Dec 14, 2005

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Jan 21, 2006

#4

• Jan 21, 2006

• #4

Bump

 

90NotchBack

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Feb 15, 2004

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Loxahatchee/Pembroke Pines, FL

Jan 21, 2006

#5

• Jan 21, 2006

• #5

I've put Heddman 351W Long tube headers 1 3/4 and stuck them on a 302. They fit but hang really low and rubbed on every speed bump.

 

8

86bluecobra

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Dec 20, 2004

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Jan 21, 2006

#6

• Jan 21, 2006

• #6

yah they would work except for the fact they would be low. the only real difference between 302's and 351w's is abot 1.3 inches. so the 351w swap headers will be 1 and 3/10 of a inch to high. if that makes sence to yah.

 

dastang2

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Dec 11, 2003

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Jan 21, 2006

#7

• Jan 21, 2006

• #7

the starter i have is a small adjustable one and the block will not allow me to adjust it any further. the header will nut sit flush with the head so i think i will have a muffler shop heat it up and bend the header out a little.

 

90NotchBack

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Loxahatchee/Pembroke Pines, FL

Jan 21, 2006

#8

• Jan 21, 2006

• #8

I've found out that 302 headers don't fit 351W

 

vristang

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Mar 31, 2005

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Jan 21, 2006

#9

• Jan 21, 2006

• #9

dastang2 said:

since i can't find any answers using search i will ask here. i have some 351 swap headers and want to know if i can use them on a 302 for now
one is on and the other hits the starter. i have an adjustable starter and have not tried to adjust it yet if the block will let me but i want to see if it has been done. they are equal length shorties.

Click to expand...

Who makes these equal length shorty 351w swap headers?

 

dastang2

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Jan 21, 2006

#10

• Jan 21, 2006

• #10

i got them used for 65 bucks but i believe the man said they were motorsports or they were shipped in a motorsports box so who knows. i really think if the tubes were heated up and the header was pryed with a bar it would bend away from the starter. i found a stock mini starter from my old tbird and it looks like it will work with these headers. if it fits i may sell the hi torque mini starter i have.