'69 351w to 408; Will this kit fit? Oh, and NOS - Ford Muscle Forums : Ford Muscle Cars Tech Forum
 
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post #1 of 1 (permalink) Old 09-20-2018, 04:43 PM Thread Starter
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'69 351w to 408; Will this kit fit? Oh, and NOS

Well, the 302 just blew in my '70 mustang while the 351w was in the machine shop, so this build was meant to be.

I have a 1969 351w (9.480 deck height) and had a heck of a time finding a kit that would work, and I think I managed to find one:

12360-PS-F408W - Ford 408W Reverse Dome -22.0cc Pro Street Engine Kit
(Site for the kit for those interested)

Spec's for bottom end-
Reverse dome piston: -22
Piston compression height: 1.280
Rod length: 6.200
Stroke: 4.000

Ran the math and figured this would be my best bet for the bottom end, came to 9.480 (Unless I got the math wrong, correct me if I did!) Want to make sure the pistons wont be sticking out of the block forcing me to run a thicker headgasket (would like to keep from having to run a 70mm or more gasket if its sticking out more than 0.020).

Last thing; this kit says with a 58 combustion chamber head, compression would be 10.36:1, and with a 72cc head, compression would be low 9s (assuming 9.1:1 or around there). Plan on running up to a 250 shot of nitrous, would the higher compression be better? Thank's, any info is appreciated, waiting till I can put the motor in the 'stang!
DaltonR is offline  
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351w , 408 , nitrous , nos , stroker

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