We commonly get questions on what mix of parts to use for different power outputs. Will try to cover a few here. These are mostly based for street use.
Build it One step at a time. These can be done easily on a Saturday with some planning.
This is for the guy that wants to make improvements on a budget over time.
- Use a HEI distributor. Easy to install. Relatively cheap to buy, highly tuneable. Be sure to feed it with a solid 12V wire, do not use the factory distributor wire. I like to trigger a relay with the OEM wire.
- Electric fan. Free up HP and TQ by switching out that power robbing mechanical fan. Gaining 8-10HP on a 150 HP engine is a big percent.
- Head work. 25HP and TQ can be gained on a stock engine. Larger valves, Lump ports and decking the head will all aid in raising the power level. 1.94 intakes for hot street and 292, 1.84 intakes for engines expected to make 225-250 HP. Heads can be swapped in a afternoon. You can use the OEM intake/ exhaust and save money for a swap for a later date. Cams with lifts of .480 or higher would benefit from use of roller rocker arms. Something to plan on for later.
- Intake/ Exhaust. 15-20 HP gain.Can be done on a Saturday with pre planning for throttle and exhaust hookups. Offy and Clifford both make a intake that will fit under your hood. The offy being for more casual builds and the Clifford making more power at 3K and above. Both need to be water heated for best overall running.
- Cam swap. 15-30 HP gain. This is the hardest to do and may take you the weekend. Choose a cam to fit your driving and transmission. Springs need to match the cam. The balancer must be removed and later reinstalled. 194-230-250 engines, the cranks are not drilled for a installation tool to be used. We make a tool to drill and tap the crank to be able to use a installation tool. Also a good time to replace the damper.
More info to follow.