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Old 03-16-2017, 06:50 PM
1985 CCX's Avatar
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Cobra Make, Engine: AK1085 (302 Street), HTM111 (427 Comp), CSX2375R (289 Comp) and COB5999 (427 S/C)
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Wow, awesome however may be tight in a 289 car?
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Old 03-17-2017, 10:09 AM
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Originally Posted by 1985 CCX View Post
Wow, awesome however may be tight in a 289 car?
Ford Performance https://performanceparts.ford.com/do...Dimensions.pdf
  • 302 – 18 3/4"
  • 351W – 21"
  • 460 - 26"

Swap Sizing: Engine Dimensions & Tips for Popular Swaps - OnAllCylinders
Note: Includes exhaust manifolds
  • 351W - 24"
  • 429 / 460 (not Boss 429) - 27"
  • FE (not SOHC) - 27"

Dimensional difference 289/302 vs 351 - Vintage Mustang Forums
  • 289/302 - 24"
  • 351W - 25"

Width Range:
  • 289 / 302: 18.75 - 24"
  • 351W: 21 - 25"
  • 289 / 302 w/hemi heads: 26"
  • 351W w/hemi heads: 27.5"

Summary: 351W with hemi heads is wider than an FE or 385 series. Yeah, that would be a squeeze in a 289 car. Well, at least the spark plugs aren't buried deep under the heads!

I found this diagram on CC - very interesting:
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