[69Chvll]

Hey everyone,

Looking for opinions here. My goal is to stay with a SBC rated at 550 HP and 550 TQ, and within $7.5k. PS4541CT - ProSeries - GM 454 New Block Base Alum Heads ? Forged | BluePrint Engines I don't want to be building a motor, I'm looking for something more plug and play from my current 383 motor. I can transfer everything over from my old motor in order to make this one work.

I have:
•Edelbrock RPM air gap duel plane intake
•Edelbrock E street 2 EFI
•Edelbrock e street control dizzy
•Headman headers

I might change my starter to a light weight starter while I'm making the swap.

No, I don't want to go BB or LS. My whole drivetrain is rated at 600HP.

Thanks in advance!


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[Clint44]

A cast iron small block with 4.250 bores? hmmm

 

[Busted Knuckles]

That leaves a whopping .150 wide gasket/fire ring between the bores unless it's a 4.5" bore center block.

Your 383 headers ain't gonna be big enough.
Intake either.

I'd stop at 421 or 434, even with an aftermarket block. First build, no reason to go bigger than 4.155. Leave some room for clean-ups, etc.

 

[Steve R]

Who manufactures the block, heads, crank, rods, valve springs, lifters, cam and Pistons? For that price, I'd want to make sure it wasn't sourced from the cheapest of the cheap offshore suppliers.

Steve R

 

[BillK]

A cast iron small block with 4.250 bores? hmmm

Its only 4.185 bore. 4.125 stroke. Pretty common combination. Only way I would do it would be with a Dart or World Products block.

 

[BillK]

For that price, I'd want to make sure it wasn't sourced from the cheapest of the cheap offshore suppliers.

Steve R

For that price it probably is

 

[davewho1]

Too bad VortecPro doesn't build small blocks.

 

[Busted Knuckles]

Its only 4.185 bore. 4.125 stroke. Pretty common combination. Only way I would do it would be with a Dart or World Products block.

Bill, the website ad says it's a BluePrint block, 4.250" bore with a 4" stroke...maybe a misprint?

Regardless, that's a lot of cubes out of a "smallblock".

 

[CNC BLOCKS N/E]

Its only 4.185 bore. 4.125 stroke. Pretty common combination. Only way I would do it would be with a Dart or World Products block.

Bill your not going to put a 4.125 stroke in a standard height cam tunnel block give me a break !!!! Its not common combination !!!

Its 4.000 stroke with 4.250 bore and thats not a common combination. Leaves no room for a rebuild.

 

[69Chvll]

Its only 4.185 bore. 4.125 stroke. Pretty common combination. Only way I would do it would be with a Dart or World Products block.

I looked at a few other websites. It looks like it's a world products block.


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[69Chvll]

Too bad VortecPro doesn't build small blocks.

That's what I was thinking.


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[69Chvll]

That leaves a whopping .150 wide gasket/fire ring between the bores unless it's a 4.5" bore center block.



Your 383 headers ain't gonna be big enough.

Intake either.



I'd stop at 421 or 434, even with an aftermarket block. First build, no reason to go bigger than 4.155. Leave some room for clean-ups, etc.

They have a 427 SBC too.


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[BillK]

Bill your not going to put a 4.125 stroke in a standard height cam tunnel block give me a break !!!! Its not common combination !!!

Its 4.000 stroke with 4.250 bore and thats not a common combination. Leaves no room for a rebuild.

Sorry Carl, the ad I looked at showed 4.185 bore x 4.125 stroke. Maybe a misprint ? A lot of guys in my area running that combination. I didn't say anything about what block.

I cant imagine 4.250 on a standard bore center block.

 

[77 cruiser]

Too bad VortecPro doesn't build small blocks.

He does.

 

[Notalent]

I can set you up with a nicer 427/434Ci piece, within your budget and power goals. Shoot me a PM

 

[cstraub]

Hey everyone,

Looking for opinions here. My goal is to stay with a SBC rated at 550 HP and 550 TQ, and within $7.5k. PS4541CT - ProSeries - GM 454 New Block Base Alum Heads ? Forged | BluePrint Engines I don't want to be building a motor, I'm looking for something more plug and play from my current 383 motor. I can transfer everything over from my old motor in order to make this one work.

I have:
•Edelbrock RPM air gap duel plane intake
•Edelbrock E street 2 EFI
•Edelbrock e street control dizzy
•Headman headers

I might change my starter to a light weight starter while I'm making the swap.

No, I don't want to go BB or LS. My whole drivetrain is rated at 600HP.

Thanks in advance!


Sent from my iPhone using Tapatalk

HP is a calculated number. It's not measured. Torque is what will rip your driveline out. I would build a 372CID 4.125 x 3.48 x 6" rod. You''ll be much happier.

 

[69Chvll]

HP is a calculated number. It's not measured. Torque is what will rip your driveline out. I would build a 372CID 4.125 x 3.48 x 6" rod. You''ll be much happier.

Good point!


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[davewho1]

He does.

Just going by his website; no evidence there.

 

[69Chvll]

Just going by his website; no evidence there.

I always thought that too. I'm going to send him an email.


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[77 cruiser]

http://www.chevelles.com/forums/13-performance/855274-380-cu-vortec-head-build.html