Neat one came in for a build

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My427stang
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Neat one came in for a build

Post by My427stang »

It won't stay the way it showed up, but

4 bolt large journal small block, TRW 327 pistons .150 in the hole, Howards alum rods, steel 302 crank, iron DZ heads ported 1960s style (very aggressive porting, need to pressure test), 10% underdriven 6-71 blower, gear drive, Isky reverse rotation cam, 280@.050 #-o , rev kit, and about everything that could make you cringe

Would love to see what it ran like, but I just can't LOL

Going to stay true to the early 70s vibe, but not entirely sure the plan yet. Likely going to bring the peak rpm way down :)
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Dan Timberlake
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Re: Neat one came in for a build

Post by Dan Timberlake »

.15 deck clearance ? I wonder if they are 350 pistons.

CHEVROLET 5.7L/350 Pistons. Compression Height (in.): 1.565 in.
CHEVROLET 5.4L/327 Pistons. Compression Height (in.): 1.654 in.
PackardV8
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Re: Neat one came in for a build

Post by PackardV8 »

It would be interesting to read of the original builder's logic for a 6-71 blown 302" with a 280 @ .050" cam. I know I can't make my mind work that way.

A while back, we had a guy going the other way, had a Chevy II 283" block and had a 350" crank turned down to fit inside. I tried to tell him no one would ever know the difference if he built a 383" or a 400" for less cost and since he was changing things, the restoration logic was null anyway. His money, his car, his decision.
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Re: Neat one came in for a build

Post by Truckedup »

Ha, sounds like HAMB logic...... :D
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RDY4WAR
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Re: Neat one came in for a build

Post by RDY4WAR »

I plugged it into EAP just to see what it shows.

Idle vacuum = 3.0"
Max boost pressure = 11.1 psi

384 HP / 334 TQ

A turd...
Odd engine build.jpeg
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My427stang
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Re: Neat one came in for a build

Post by My427stang »

Dan Timberlake wrote: Sun Nov 27, 2022 11:10 am .15 deck clearance ? I wonder if they are 350 pistons.

CHEVROLET 5.7L/350 Pistons. Compression Height (in.): 1.565 in.
CHEVROLET 5.4L/327 Pistons. Compression Height (in.): 1.654 in.
Part number checked for a 327, 9.025-(3.00.2)-5.70-1.654=.171, pretty close to what I did on a quick check before square deck
PackardV8 wrote: Sun Nov 27, 2022 12:19 pm It would be interesting to read of the original builder's logic for a 6-71 blown 302" with a 280 @ .050" cam. I know I can't make my mind work that way.

A while back, we had a guy going the other way, had a Chevy II 283" block and had a 350" crank turned down to fit inside. I tried to tell him no one would ever know the difference if he built a 383" or a 400" for less cost and since he was changing things, the restoration logic was null anyway. His money, his car, his decision.
LOL I am not sure it would have even idled....I am likely going way milder, thinking 230s with plenty of split and low overlap
RDY4WAR wrote: Mon Nov 28, 2022 11:00 am I plugged it into EAP just to see what it shows.

Idle vacuum = 3.0"
Max boost pressure = 11.1 psi

384 HP / 334 TQ

A turd...
Odd engine build.jpeg
Love it, all that stuff makes less than N/A would at 1000 rpm lower!
Bullock's Power Service, LLC
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70 Mustang, 489 FE, TKO-600, Massflo SEFI, 4.11s
71 F100 SB 4x4, 461 FE, 4 speed, port injected EFI, 3.50s
My427stang
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Re: Neat one came in for a build

Post by My427stang »

Took a different route, let the collectors have the 302 parts. Going with a set of NOS RHS iron heads with T&D rockers, Eagle lightweight 3.48 stroke crank, 6.00 SCAT H-beams, and likely Racetec 2618s. Not a fan of the heavy H beams but the guy had them and I like them better than the old Howard alum rods

Likely will go light parts and set up with a hyd roller but still in planning stages
Bullock's Power Service, LLC
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70 Mustang, 489 FE, TKO-600, Massflo SEFI, 4.11s
71 F100 SB 4x4, 461 FE, 4 speed, port injected EFI, 3.50s
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Re: Neat one came in for a build

Post by Bigchief632 »

My427stang wrote: Wed Dec 14, 2022 8:30 am Took a different route, let the collectors have the 302 parts. Going with a set of NOS RHS iron heads with T&D rockers, Eagle lightweight 3.48 stroke crank, 6.00 SCAT H-beams, and likely Racetec 2618s. Not a fan of the heavy H beams but the guy had them and I like them better than the old Howard alum rods

Likely will go light parts and set up with a hyd roller but still in planning stages
Still running the blower? If so, I'd suggest not running the lightweight crank.
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My427stang
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Re: Neat one came in for a build

Post by My427stang »

Think the forged piece isn't strong enough? We are 11% under driven, and a hyd roller, I figured it was plenty but haven't ran those Eagles, I am generally a SCAT guy
Bullock's Power Service, LLC
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70 Mustang, 489 FE, TKO-600, Massflo SEFI, 4.11s
71 F100 SB 4x4, 461 FE, 4 speed, port injected EFI, 3.50s
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Re: Neat one came in for a build

Post by af2 »

Bigchief632 wrote: Thu Dec 15, 2022 5:35 pm
My427stang wrote: Wed Dec 14, 2022 8:30 am Took a different route, let the collectors have the 302 parts. Going with a set of NOS RHS iron heads with T&D rockers, Eagle lightweight 3.48 stroke crank, 6.00 SCAT H-beams, and likely Racetec 2618s. Not a fan of the heavy H beams but the guy had them and I like them better than the old Howard alum rods

Likely will go light parts and set up with a hyd roller but still in planning stages
Still running the blower? If so, I'd suggest not running the lightweight crank.
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Re: Neat one came in for a build

Post by jsgarage »

(Bigchief) Still running the blower? If so, I'd suggest not running the lightweight crank.

I agree with Bigchief- I think you'll snap the nose off a lightweight crank driving a Jimmy from there.
My427stang
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Re: Neat one came in for a build

Post by My427stang »

Are you guys concerned about the size of the counterweights and the blower pulling on it? The crank doesn't seem much different otherwise
Bullock's Power Service, LLC
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70 Mustang, 489 FE, TKO-600, Massflo SEFI, 4.11s
71 F100 SB 4x4, 461 FE, 4 speed, port injected EFI, 3.50s
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Re: Neat one came in for a build

Post by Bigchief632 »

My427stang wrote: Sat Dec 24, 2022 9:15 am Are you guys concerned about the size of the counterweights and the blower pulling on it? The crank doesn't seem much different otherwise
Got a picture of it? but yes, the blower puts a lot of stress on it compared to a n/a deal. Depending on how it's "lightened" it may not hold up.
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