Parts Choices
During the testing, certain parts interfered with others, due to sizing variances. In an aftermarket version, it's not uncommon to see extra material around a stress-related area. Currently, companies like Edelbrock, Professional Products, and Weiand, are all making aluminum Vortec intake manifolds for carbureted applications. Other companies, such as Crane Cams, Comp Cams, and Proform Products, offer special Vortec self-guided roller rockers arms in 1.5:1 and 1.6:1 ratios. These parts are specific to Vortec applications and have slightly altered measurements as compared to stock GM parts. Whenever ordering cylinder heads, find out whose rocker arm will fit the head and valve-cover application. Also, make sure the heads have rocker studs and either guide plates or self-guided rockers. Below is a list of complied parts that were interchanged on our Hye- Tech short-block to test each of the heads.
| Description: | Manufacturer | Part Number | Price ($) |
| 355ci assembled short-block | Hye-Tech | Call | $900 |
| 7qt oil pan | Moroso | 20191 | 180 |
| Oil pump | Moroso | 22100 | 56 |
| Oil pick up tube | Moroso | 24170 | 30 |
| Camshaft | Crane Cams | 119831 | 300 |
| Hydraulic Roller lifters | Crane Cams | 11532-16 | 410 |
| Pushrods | Crane Cams | 95621-16 | 144 |
| Alu Rockers 1.5:1 self-guided | Crane Cams | 10751-16 | 320 |
| Billet Timing gear and roller chain | Crane Cams | 11975-1 | 79 |
| Self-guided rockers | Comp Cams | 1317-16 | 325 |
| Harmonic Dampener | Professional Products | 90002 | 147 |
| Vortec intake manifold | Professional Products | 52028 | 168 |
| 2-piece timing cover | Edelbrock | 4242 | 76 |
| E-Tec cylinder heads 170cc | Edelbrock | 60979 | 1080 |
| Oil Pan gasket | Fel Pro | 1802 | 11 |
| Head gasket | Fel Pro | 1144 | 72 |
| Intake gasket | Fel Pro | 1255 | 20 |
| Timing Cover gasket | Fel Pro | 2702 | 19 |
| Rear main seal | Fel Pro | 2900 | 10 |
| Valve cover gasket | Fel Pro | 1648 | 38 |
| OE valvetrain modified Vortec | Scoggin-Dickey | SD8060A | 655 |
| Bowtie Vortec heads 170cc | Scoggin-Dickey | 25534421 | 980 |
| Bowtie Vortec heads 200cc | Scoggin-Dickey | 25534431 | 1000 |
| GM Vortec reusable intake gasket | Scoggin-Dickey | 89017465 | 41 |
| Valve cover adapter | Scoggin-Dickey | 24502540 | 155 |
| Alu rockers, 1.5:1 self-guided | Proform | 66914 | 180 |
| Valve covers center-bolt | Proform | 141-130 | 130 |
| 650cfm Speed Demon | Barry Grant | 1282010 | 439 |
| 750cfm Speed Demon | Barry Grant | 1402010 | 439 |
| Dual fuel feed line | Barry Grant | 140006 | 80 |
| Vortec heads 165cc | Dart Machinery | 10024370A | 711 |
| Head bolts | ARP | 134-3601 | 52 |
| Accessory bolt kit | ARP | 534-9801 | 70 |
| Vortec intake bolt kit | ARP | 134-2002 | 22 |
| Carburetor stud kit | ARP | 200-2401 | 13 |
| Distributor stud kit | ARP | 130-1702 | 4 |
| Balancer bolt | ARP | 134-2501 | 19 |
| Oil pump drive shaft | ARP | 134-7901 | 14 |
| Bolt assembly lube | ARP | 100-9906 | 18 |
| Spark plugs (set) | Champion | RS14YC6 | 12 |
| HEI Distributor | Pertronix | D1001 | 230 |
| Plug Wires (universal fit) | Pertronix | 808490 | 50 |
| Cartridge roll porting kit | Standard Abrasives | 260006 | 30 |
| *Note: Price pulled from www.summitracing.com, www.sdpc2000.com, www.speedomotive.com |