Tech Help Q & A

We normally suggest using a high Grade SAE 10W/30 Motor oil along with a ½ pint of a good quality zinc break in oil. After 2 oil changes if you would like to go with a synthetic or blended version then this is O.K. Do an initial oil change after 500 Miles then just every 3000 miles from there. Note on the first oil change your oil will look blacker than normal this is because when we assemble the engine we use a heavy duty Graphite on all Moving parts. Many people will ask how many quarts of oil does my engine hold. We have to tell you that every engine is a little different because we install the oil pan that is Made for the application, many will only take 4 quarts and some as many as 8 quarts. Here is how we want you to do it, on initial oil and filter change, first fill the new oil filter to the top, Then install 3 quarts of oil in the engine, then count how many additional quarts does it take to reach the full mark on the Dipstick, caution do not overfill.

Engine Factory will normally do the break in of the camshaft on our Turnkey engines.  Upon taking your vehicle on the road for the first time stagger the throttle from 30 to 50 MPH several times to get the Piston Rings seated properly. Keep the RPMs under 4000 RPMs for the first 1000 miles.  

Keep them under 5800 RPMs.  The power starts to drop above this anyway in most Street Engines. You will have all the power you’ll ever need below this level anyway. Going beyond this definitely increases your chances of damaging internal Parts.

When filling cooling system, top off Radiator with 50/50 Mixture of Antifreeze and Water with engine cold. After engine is started check coolant Level after engine  reaches 160 F. Top off as necessary. Always use caution around hot coolant, Always use a temperature gauge not an idiot light. After the engine reaches 180 degrees shut it down and let the engine cool down then slowly remove the radiator cap start the engine and top off.

This can be a huge list but one of the most important ones to mention would be the Radiator. Use a brand new Aluminum or 3 to 4 core Radiator to keep your replacement engine cool. Some other items would include Engine and Transmission Mounts, Clutch, Torque converter, Fan, belts, hoses, U-Joints, pulleys, hoses and clamps, fuel lines, sensors etc.  Reference our installation tips list along with and review each tag on the engine. If you don’t feel comfortable to take this on then contact a qualified mechanic. Early model vehicles with drum brakes should be converted to disc brakes when installing a high performance engine. Most serpentine system require using an electric Fan  the Flex lite 180 series puts out 3300 cfm and will keep your engine nice and cool.

GM HEI wiring terminals

Here are the part Numbers you can order from   www.summitracing.com   although most auto parts store will also have them many different brands >>>> be sure to tell the guys the Power lead must be hooked up to the Ignition terminal so that the distributor has 12 volts with the key on and no voltage with the key off. Never hook up to the same wire that powers an electric fan or the automatic choke

Painless Wiring 30809 - Painless Performance HEI Power Pigtails

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HEI Power Pigtail, GM HEI Distributors, Each
Part Number: PRF-30809

Painless Wiring 30813 - Painless Performance HEI Tachometer Lead Pigtails

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Wiring Harness, HEI Tachometer Lead, 6 ft. Length, Each
Part Number: PRF-30813

Chevy Flywheels and starters compatibility

flywheel-starter-compatibility
Flywheel and starter on the left is 153 tooth and the compatible starter has bolt pattern straight across from each other; this flywheel uses a 10.5 inch Clutch.

Flywheel and starter on the right is 168 tooth and the compatible starter has the bolts staggered across from each other; this flywheel uses a 11 inch clutch.

See important technical item below.

The starter bolts are special and also the engine block is special where the starter bolts seat >>> When you get your starter off always look at how the engine block has the starter bolt holes recessed up in the block again the threads in the block should be recessed up in the block about 3/8 of an engine this allows the shoulder that is built on the starter bolts to fit up in that recess precisely that is what gives the bolts the strength and keeps everything in perfect alignment.

 

Chevy flexplate and starter compatibility: both have Balance weights 86-96  when they bolt up be sure weight goes to the front of the engine.

Also, years that have these combos please consider that over the years Chevy engines have been transplanted into just about every combination out there.  A quick way to tell what size flywheel you have is to look closely at starter bolt configuration and compare to my illustrations.

flexplate-starter-compatibility

Flexplate and starter on the left is 153 tooth and the compatible starter has bolt pattern straight across from each other.
Flexplate and starter on the right is 168 tooth and the compatible starter has the bolts staggered across from each other.

See important technical item below:
Camaros
68-83 Camaros had 168 tooth flywheels
84-93 Camaros had 153 tooth flywheels.

Corvettes
67 and earlier Corvettes had 153 tooth flywheels.
68-83 Corvettes had 168 tooth flywheels
84-85 Corvettes had 153 tooth flywheels
86-93 Corvettes Had 168 tooth flywheels

If a customer’s torque converter does not bolt up to flexplate then they will need the torque converter that has multiple bolt holes.

The starter bolts are special and also the engine block is special where the starter bolts seat >>> When you get your starter off always look at how the engine block has the starter bolt holes recessed up in the block again the threads in the block should be recessed up in the block about 3/8 of an engine this allows the shoulder that is built on the starter bolts to fit up in that recess precisely that is what gives the bolts the strength and keeps everything in perfect alignment.

On some engines Like Corvettes and Cobras The customer fills his cooling system and thinks his engine is full it is not; that is because the radiator fill neck sits lower than the Thermostat housing, Coolant does not run up hill which means the upper portion of your intake system is not completely full and that is where your Temperature sender sits. I recommend the Moroso upper radiator hose fill Part Number 63730

Now another reason if your engine temperature is higher than normal; If you have installed a late model Serpentine Belt system that is driven by a single belt, You must be aware that those system use reverse turn water pumps. Here is where most people go wrong they put on a fan and fan clutch that is for a standard rotation pump, this means your Fan is now turning the wrong way, easiest way to resolve this issue is to use an electric fan we recommend the Flex lite 180 series they deliver 3300 Cfm’s of air flow and will keep your engine cool.

Very important to follow these instructions:
Distributor and Electric Choke positive terminals must be hooked up to separate 12 volt key controlled (on and off with key )  If you use an electric fan it must be hooked up to a separate circuit otherwise it can burn out the ignition module in the distributor. Here is why if you shut the vehicle off and the fan is still spinning the fan acts like a generator and sends back a voltage spike that instantly  burns out the Ignition Module in the distributor.

Also be sure to have a heavy duty 4 Gauge Ground cable going from the engine block to the vehicle frame otherwise you will constantly be adding water to your battery and your alternator will be spiking voltage at 18 volts.

Most auto parts stores have a simple piece that plugs into your fuse panel and adds 4 separate key controlled circuits that plugs into the accessory circuit.