Stroker motor question

chobracobra

New Member

Jun 29, 2004

175

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jersey shore

Apr 10, 2006

#1

• Apr 10, 2006

• #1

I got a deal on a brand new 347 rotating assebly a whiles back. The question is, besides block modifications, what else should i consider? basically the way im looking at it; Increasing the displacement with the my parts will be restricing potential power but at least i have a foundation to continue my quest for more horsepower. Also what about the cam? Longer stroke= different cam specs, right? my parts are in the sig. thanks

 

J

jjd975

Founding Member

Jul 17, 2000

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louisville,kentucky

Apr 10, 2006

#2

• Apr 10, 2006

• #2

Your current heads, cam and intake are all small for a 347. You can use them but dont expect great numbers.

 

legalize420

Active Member

May 21, 2005

1,541

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South Florida

Apr 10, 2006

#3

• Apr 10, 2006

• #3

" Increasing the displacement with my parts will be restricing potential power but at least i have a foundation to continue my quest for more horsepower "


im in the same boat. i got another block already, but not the rotating assembly yet. still undecided what route to go myself. im either going 306 or 347. if i do the 347 im going to save up for better heads. if i go the 306 route i will use the money saved from the 347 kit to work my heads. its either 306 + boost, or 347 with spray

 

legalize420

Active Member

May 21, 2005

1,541

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37

South Florida

Apr 10, 2006

#4

• Apr 10, 2006

• #4

anyone know someone that put gt40s on a 347? i know the 351 lighting uses gt40s.

 

legalize420

Active Member

May 21, 2005

1,541

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South Florida

Apr 10, 2006

#5

• Apr 10, 2006

• #5

jjd975 said:

Your current heads, cam and intake are all small for a 347. You can use them but dont expect great numbers.

Click to expand...

how much of a gain would be expected? at least if its a gain, its a good foundation as mentioned above. does anyone know what kind of number the 351 with the gt40's put down powerwise?

 

Grn92LX

Fidanza Man!

Founding Member

Jan 14, 2001

6,819

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129

New York

Apr 10, 2006

#6

• Apr 10, 2006

• #6

You probably won't even hit 300rwhp but you will have a nice foundation for real parts in the future.

 

legalize420

Active Member

May 21, 2005

1,541

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South Florida

Apr 10, 2006

#7

• Apr 10, 2006

• #7

based on my trap speed (104-105) its fair to say i have about 270 ish right? hypotheticly speaking, you dont think there would be a little more then 300 with the addition of the 347 ?

 

legalize420

Active Member

May 21, 2005

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37

South Florida

Apr 10, 2006

#8

• Apr 10, 2006

• #8

ttt

 

5spd GT

"the 5.0 owns all"

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Aug 7, 2002

9,516

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Arkansas

Apr 10, 2006

#9

• Apr 10, 2006

• #9

It is very possible you will hit 300rwhp...don't worry about it anyways. You will be quicker and it is easier to add on top of like your plans are...so good luck with it!