351 Spitfire decal What is 351 stand for?

[Andrew C]

I have a 1993 Chris Craft with the OMC king cobra 7.4 ltr. It has the spitfire ignition as indicated on the carb cover, but it also has a large "351" above the "spitfire". Is the "351" just part of the spitfire name or is it a HP indicator? Thanks
Andrew

 

[ziggy]

Re: 351 Spitfire decal What is 351 stand for?

while i aint the pro. if i saw 351 stuck on my engine. i'd assume it's a ford engine. the larger hp (whatever that is) vs the 302 version... the numbers would be cu. in. displacement..

 

[Don S]

Re: 351 Spitfire decal What is 351 stand for?

Someone probably replaced the carb cover. The Spitfire ignition system was also used on the 5.8L (351 cu in) Ford engines that year.

 

[a70eliminator]

Re: 351 Spitfire decal What is 351 stand for?

Sounds like you have the wrong carburetor cover, the cover should have a big Cobra snake with the numbers 460 that look like they're on fire, pretty cool.

 

[Andrew C]

Re: 351 Spitfire decal What is 351 stand for?

Thanks for the clarafication

 

[Don S]

Re: 351 Spitfire decal What is 351 stand for?

Sounds like you have the wrong carburetor cover, the cover should have a big Cobra snake with the numbers 460 that look like they're on fire, pretty cool.

Uhhhhh, not with a Chevy 7.4L in it.

 

[Andrew C]

Re: 351 Spitfire decal What is 351 stand for?

I was assuming I had the "Spitfire" ignition based on the carb cover. If it is a replacement cover from a 351, is ther another way to determine if I do in fact have the dreaded "Spitfire" setup? Thanks again.
Andrew

 

[a70eliminator]

Re: 351 Spitfire decal What is 351 stand for?

Uhhhhh, not with a Chevy 7.4L in it.

Oh crap, you jumped right on that one, 460's are 7.5 litre right? I was all wrapped into thinking Ford with the 351 talk.

 

[rodbolt]

Re: 351 Spitfire decal What is 351 stand for?

3 5 1 7.4GM
stands for
3 cylinders run about .5 the time ands something blows up 1 time per year.

 

[Don S]

Re: 351 Spitfire decal What is 351 stand for?

Look for a rectanglar box that has the coil wire coming out of it going to the center terminal on the cap.
Could also take the cap off the distributor. Other than the rotor, it's empty.

 

[Knightgang]

Re: 351 Spitfire decal What is 351 stand for?

Still, noone has said what the 351 stands for. 7.5 was the Ford 460, 7.4 was the Chevy 454. Is it still possible that the Carb covers have been swapped... If OMC used both Ford and Chevy engines, and bost used the same carbs, it is possible that the 351 would be from a 5.8ltr that has been used on a Chevy 7.4... JMO

 

[Don S]

Re: 351 Spitfire decal What is 351 stand for?

Still, noone has said what the 351 stands for.

Both ziggy and I answered the 351 question. Look at the first two replies.

 

[rodbolt]

Re: 351 Spitfire decal What is 351 stand for?

hey
I answerd it too

 

[Don S]

Re: 351 Spitfire decal What is 351 stand for?

Well, yeah, sort of

 

[Lou C]

Re: 351 Spitfire decal What is 351 stand for?

well for the third reply

back in the wonderful old days of non metric measurments....
351 was 351 cubic inches of cyl displacement....which by the way equates to about 5.8 liters....
302 cubic inches...about 5 liters
350 cu in...5.7 liters
454 cu in...7.4 liters
460 cu in...7.5 liters

Somehow describing an engine's size in liters is just not as much fun as talking about 327s...283s...409s...427s...etc....
1 liter=61 cu in...

can you imagine the Beach Boys trying to sing...she's real fine my 6.7
instead of she's real fine my 409....