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FE Power Forums => FE Technical Forum => Topic started by: fastback 427 on August 22, 2026, 07:53:15 AM

Title: Guess the horsepower
Post by: fastback 427 on August 22, 2026, 07:53:15 AM: Finally finished the 427 for my mustang. It was an older build, high compression 427, 428 crank, Dove top end. I was tired of the race gas pain so wanted pump gas. The stroker kit was from Blair, Scat forged 4.25, molnar rods, diamond pistons. R and R in Minnesota did the machine work. I had picked a cam from Bullet, solid flat tappet, for my Dove heads. In the time after, the trick flows came out, so I ordered a set from Brent, he had them ported a bit, and set them up for my cam. I will say we were nervous about breaking it in, due too the big lift, so he used beehive springs, titanium everything else, and a light spring pressure. The intake is a Dove single plane with a dominator top welded on.
So basically it is a 488 cube, 11 to 1, pump gas, not ideal cam, 1050 carb. I will post numbers after some guesses.
Title: Re: Guess the horsepower
Post by: frnkeore on August 22, 2026, 11:37:32 AM: It would be helpful to have the cam details.
Title: Re: Guess the horsepower
Post by: fastback 427 on August 22, 2026, 11:53:10 AM: .693 int. 688 ex. 263/ 270 at 50 108 lobe.
Title: Re: Guess the horsepower
Post by: cjshaker on August 22, 2026, 01:53:32 PM: I'll play
605 hp
Title: Re: Guess the horsepower
Post by: chilly460 on August 22, 2026, 02:19:53 PM: 675
Title: Re: Guess the horsepower
Post by: blykins on August 22, 2026, 02:26:01 PM: 685
Title: Re: Guess the horsepower
Post by: fastback 427 on August 22, 2026, 02:58:15 PM: She might be a bit of an over achiever.. 723.1 HP, 638 tq
Title: Re: Guess the horsepower
Post by: Dumpling on August 22, 2026, 05:42:31 PM: 505 HP
Title: Re: Guess the horsepower
Post by: Stangman1 on August 22, 2026, 06:56:02 PM: Wow nice setup. Love a solid flat tapper. Nothing sounds better.
Title: Re: Guess the horsepower
Post by: cjshaker on August 23, 2026, 12:23:42 AM: Quote from: fastback 427 on August 22, 2026, 02:58:15 PM
She might be a bit of an over achiever.. 723.1 HP, 638 tq

Almost, 1.5 hp per CI, I'll say! Wow, was I way off. I should have allowed more for the heads and lift....alot more.
Title: Re: Guess the horsepower
Post by: My427stang on August 23, 2026, 07:12:04 AM: Nice work!
Title: Re: Guess the horsepower
Post by: fastback 427 on August 23, 2026, 12:40:24 PM: Thanks for the comments guys, very happy with how this turned out, should motivate my mustang pretty damn good.
Title: Re: Guess the horsepower
Post by: 1967 XR7 GT on August 26, 2026, 07:49:12 AM: Quote from: fastback 427 on August 22, 2026, 07:53:15 AM

So basically it is a 488 cube, 11 to 1, pump gas, not ideal cam, 1050 carb. I will post numbers after some guesses.

After the results of 723.1 HP, 638 tq and state a bit of an over achiever., why would you then say "not ideal cam" ?

I see a combination that worked and made really good numbers. What were the heads flow numbers ?
Title: Re: Guess the horsepower
Post by: fastback 427 on August 26, 2026, 07:29:39 PM: 1967 XR7 GT, That cam was picked for my set of dove medium riser heads, definitely different flow, runner size and chamber. Not sure how much that affects it but I was told a different cam would help. For what it's worth, I am extremely happy with the results, hopefully the track times back it up.