How to Build a Budget 637hp 385ci Small-Block Engine

Budget-Based, Blown & Bad! - Building a 637hp small-block on 91-octane

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The Goods

Part Numbers

A.R.E. Performance & Machine
Machining & assembly Call
Brodix, Inc.
IK 200 cylinder heads 1021007
IK 200 manifold HV 1016
Comp Cams
Camshaft 12-467-8
Roller rocker 19002-16
Lifters 853-16
Pushrods 7956-16
Demon Fuel Systems
650-cfm Mighty Demon, Blow-through 5282020BT
Performance Distributors
D.U.I Distributor 12720
Melonized gear 78068
Livewires C9051
Battery and tach connectors 111111
Speedway Motors
Forged SBC rotating assembly 9151234
King HP rod bearings 910-807HP-STD
King HP main bearings 910-557HP-STD
Push-in valve cover breather kit 54568810
ARP Fasteners, SBC head bolts 1011343601
ARP Fasteners, SBC kit 1015349501
ARP Fasteners, SBC main studs 101RMS2
Oil pan, '55-79 9109005
Pioneer brass freeze plug set 577PE100BR
Dipstick 7204957
Labor to side clearance rods 91510200
Labor to balance rotating assembly 91510200
TorqStorm
Supercharger kit SBC

385ci Small Block Torque Cylinder 2/36

With the head gaskets positioned, the cylinder heads were torque to 80 ft-lb.

Comp Cams High Energy 3/36

For the lifters, we used a set of COMP Cams High Energy hydraulic-roller lifters, a retro-fit setup for non-roller blocks. Be sure to double-check your block and personal parts list to match the appropriate lifter for your application.

385ci Small Block Lifters 4/36

For the lifters, we used a set of COMP Cams High Energy hydraulic-roller lifters, a retro-fit setup for non-roller blocks. Be sure to double-check your block and personal parts list to match the appropriate lifter for your application.

Comp Cams 5/36

We also used a set of COMP Cams 5/16-inch, 0.080-wall pushrods with a 7.450-inch length.

385ci Small Block Pushrods 6/36
385ci Small Block Comp Cams Roller 7/36

To complete the top end, we complemented the Brodix heads with COMP Cams Ultra Gold 1.6:1 aluminum roller rockers with 3/8-inch studs. Lastly, we mounted the Speedway Motors’ fabricated aluminum valve covers.

385ci Small Block Speedway Motors Steel 8/36

To seal the bottom end, we used a Speedway Motors’ steel stock small-block pan. This was a bargain at $30, with perfect fitment, and it fits most ’55-79 applications.

Torqstorm Supercharger 9/36

Installing the TorqStorm supercharger was ridiculously easy. And because the system features a self-contained oil supply, this eliminates the need for any additional oil lines.

385ci Small Block Mount Blower 10/36

We started by mounting the blower brackets; there are only four bolts to secure the brackets and it mounts directly onto the cylinder head. We should also note that TorqStorm offers a lot of options, including your choice of driver- or passenger-side-mounted supercharger systems. Ultimately, the choice is yours and you should go with whichever system will adapt the easiest to your specific combination.

385ci Small Block Secure Front 11/36

Next, the front-plate that actually holds the blower was then secured to the base bracket with four billet spacers.

385ci Small Block Bolt Torqstorm 12/36

Once the brackets were in place, we bolted the supercharger onto the front plate.

385ci Small Block Mount Timing 13/36

We then mounted the Speedway Motors timing cover and balancer, and the TorqStorm billet aluminum lower blower pulley.

385ci Small Block Finished Blower 14/36

Here’s a good look at the finished blower assembly. We used the supplied Goodyear 8-rib serpentine belt and snugged the belt with the tensioner.

385ci Small Block Air Filter 15/36

One of the qualities we like about the TorqStorm setup is that it comes complete with everything you need for the installation. The back of the blower also offers an adjustable scroll, which allows you to ideally position the discharge tube to your carburetor. And yes, even the air filter assembly is included.

385ci Small Block Discharge Tube 16/36

This system really impressed us. It’s the first blow-through kit we’ve used that supplies you with a complete discharge tube assembly with the blow-off valve, V-band clamps, air filter, and a carburetor hat. That means you don’t have to spend time fabricating or farming it out to a qualified welder.

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