Components needed for LS style ignition system
05-10-2013, 12:38 PM
#1
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Location: Frederick, CO
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Components needed for LS style ignition system I'm rebuilding a '59 Chevy and want to keep the original 348 engine (W engine). I'll punch it out to a 434 which will allow me to use a SBC balancer.
After some research, it doesn't seem like it would take a huge effort to place an LS style ignition system on the engine. Seems I would need:
PCM - Custom flashed
Knock Sensor - Would think mounting it in the intake manifold would work
Cable Throttle Body
Mass Air Flow Sensor
Cam Sensor
24 or 58 tooth ring such as http://www.summitracing.com/parts/hly-556-103/overview/
Wire harness
Fuel Rails & Injectors
Modifications to the timing cover
Coil packs and mounting points to valve covers
O2 Sensors
What am I missing from the list?
Thanks!
After some research, it doesn't seem like it would take a huge effort to place an LS style ignition system on the engine. Seems I would need:
PCM - Custom flashed
Knock Sensor - Would think mounting it in the intake manifold would work
Cable Throttle Body
Mass Air Flow Sensor
Cam Sensor
24 or 58 tooth ring such as http://www.summitracing.com/parts/hly-556-103/overview/
Wire harness
Fuel Rails & Injectors
Modifications to the timing cover
Coil packs and mounting points to valve covers
O2 Sensors
What am I missing from the list?
Thanks!
05-10-2013, 01:00 PM
#2
They systems have already been adapter to other SBC/BBC. Good Luck.. keep the posts and pictures coming .
If you can get the tuning, the trigger and sensor all mounted up as required. you should be good !
For the knock Sensor.. how about brazing a bung on the side of the block near the starter..
would take a little bit of work to get the cam sensor on the front of the CAM.. like the Gen IV engine.
BC
If you can get the tuning, the trigger and sensor all mounted up as required. you should be good !
For the knock Sensor.. how about brazing a bung on the side of the block near the starter..
would take a little bit of work to get the cam sensor on the front of the CAM.. like the Gen IV engine.
BC
05-10-2013, 02:10 PM
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BC - Thanks!
One option for the Cam sensor is this:
http://www.eficonnection.com/eficonn...spx?ItemId=623
EFI Connection has a cam 1x and 4x cam sensor mounted in a distributor package.
Much easier than modifying the timing cover and adding a spacer for the water pump which would move all the pulleys out as well. The other problem is needing an adapter sleeve for the distributor. However, those are pretty common to the 348/409 community.
The main thing I'm looking to get out of the conversion is the increased spark efficiency. If I am not mistaken, a typical HEI can get about 30k volts to the plug while the coil packs can get close to 100k volts to the plug.
I'm assuming the sensor mounting is based on #1 cylinder at TDC. Is this correct?
This is starting to seem pretty doable over all.
If I find myself filling time at bone yard, what vehicle should I look at pulling parts off of?
One option for the Cam sensor is this:
http://www.eficonnection.com/eficonn...spx?ItemId=623
EFI Connection has a cam 1x and 4x cam sensor mounted in a distributor package.
Much easier than modifying the timing cover and adding a spacer for the water pump which would move all the pulleys out as well. The other problem is needing an adapter sleeve for the distributor. However, those are pretty common to the 348/409 community.
The main thing I'm looking to get out of the conversion is the increased spark efficiency. If I am not mistaken, a typical HEI can get about 30k volts to the plug while the coil packs can get close to 100k volts to the plug.
I'm assuming the sensor mounting is based on #1 cylinder at TDC. Is this correct?
This is starting to seem pretty doable over all.
If I find myself filling time at bone yard, what vehicle should I look at pulling parts off of?
Last edited by 303Radar; 05-10-2013 at 02:46 PM. Reason: New info/question.