Kind of OT: 427 induction options?

[Jeb_Bush_2000]

My dad's gonna be building a Cobra replica...he wants to know what his options are for intake/heads on a vintage, rebuilt 427. Just toss practical ideas out...no need to worry about costs right now.

[Rev]

if correctness is not a problem, then Edelbrock makes heads and I believe good performance intakes. If correctness is a problem and $$$ is not, then I also believe Shelby has heads and intakes. Just a couple of ideas.

Rev

[Jeb_Bush_2000]

I'm wondering if it's possible to go mass-air without making the engine too tame?

[Coupe Devil]

I think even Edelbrock would somewhere you could go for close to correct heads and induction. Edelbrock has been around along time and has probably has worked on a few 427's. I would go with Edelbrock on this one. As for which heads and intake I dont know. I would chose something like a Victor style intake though.

Brad

[tireburner163]

for a intake you just gotta have sometype of a dual-quad or tri-power setup

[Jeb_Bush_2000]

I don't think it revs high enough to use all that carb. They came from the factory with a single quad, but the SOHC Nascar engines were duals.


I swear I've seen an intake that used a two-barrel as a primary and a four-barrel as a secondary...anyone seen that before?

[Unit 5302]

Their were other 427's that had the dual quad from the factory than just the SOHC. My '63 low riser is dual quad as well.

I believe the generic build specs for the 427 Cobra's used a single, monstrous 4bbl. As for not being able to use the big 4bbl because of a low redline, lol yeah right. Redline at 6,000rpms (stock) for the older ones, not sure about the side oiler like the Cobra used, and with the forged stuff like I have, 7000rpms. On a monster 427, that's moving the same kind of volume a little 302 would at nearly 8,500-10,000rpm.

I really wouldn't worry about making a fake Cobra all original. As far as converting to MAF, I'm not aware of any MPFI stuff for the FE engines. It would require some pretty nasty injectors, custom fuel lines, custom intake, custom computer, and maybe an EEC tuner. You'd also have to change the distributor, and about 100 other things.

[Jeb_Bush_2000]

I apologize, and should have been more specific. I meant that AFAIK, no Mustang ever got a dual-quad 427 from the factory, and that a street-use OHV 427 probably couldn't effectively use a dual-quad.


[edit]In '67, the Fairlane got a dual-quad 427, rated at 425hp and 480 ft-lbs, with 11.1:1 compression. In '66, the same engine was offered in the full-size cars only as a race option.[/edit]

[Coupe Devil]

[QUOTE]Originally posted by Jeb_Bush_2000
[B]I apologize, and should have been more specific. I meant that AFAIK, no Mustang ever got a dual-quad 427 from the factory, and that a street-use OHV 427 probably couldn't effectively use a dual-quad.

Well maybe. My buddy that is a Ford Mechanic and is helping me Build my car recently got done rebuilding a Tunnel Port 427 in a 67 fast back. The man that owned it got it from the original owner who in 1967 ordered a 67 fastback with out motor and tranny. He then sent it to Hollman and Moody for the engine transplant. It run like a scalded dog after we got it done. It had the two 700 four barrels. It was hard to hold on the road off the line. With 4.10 gears and slicks it ran low 10's in the 1/4. It would freakin fly.

Brad

[Jeb_Bush_2000]

It had the two 700 four barrels. It was hard to hold on the road off the line. With 4.10 gears and slicks it ran low 10's in the 1/4. It would freakin fly.

Was the engine otherwise stock? Did the car have anything else except 4.10s?

[Mr 5 0]

'Jeb':

The '67 Shelby GT350 was available with the 428 engine (rated @ 355 HP) which had 2 600 cfm 4bbl. carbs on a 427 medium-riser intake under a one-piece 'Cobra' air cleaner.

The '68 Shelby Mustang is listed with a 427 C.I. engine option and I've read/heard that a very few Shelby Mustangs actually came with the 427 engine installed at the factory but I also understand that most early Mustangs with 427's were dealer - not factory installed.

In other words, a 427 Mustang is very rare.

A 2 X 4 barrel setup was used on many muscle cars of the era, including GTO's, big-block Mopars and Chevys as well as full-sized Fords with the 427 which was rated @ 427 @ 425 HP with the 2 4 bbl. option.

A single 4 bbl. 427 was used on the original AC Cobras and would be a fine choice for your Cobra replica.