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LS-Series Engine to Chevy TH350/700R4/2004R Flexplate Kit

LS-Series Engine to Chevy TH350/700R4/2004R Flexplate Kit

Part Number:GMLSFP
Your Price: $299.00
This custom flex plate kit is designed to adapt the Gen III / LS series to the GM TH350, and 700R4 transmissions. The kit includes a flexplate, 11mm flex plate bolts, crank spacer.
 
Gen III / LS Engines
 
The new style Gen III / LS series engines (4.8, 5.3, 5.7 LS1, 6.0, 6.2) all have the same crank stick out which is .400” closer to the block than the standard Gen 1 & Gen2 Chevy V8. The Gen III / LS series crank bolt pattern is different than any other GM crank as to the bolt pattern on the flex plate. Only Gen III / LS series flexplates fit these engines!!!
 
Since a Gen III / LS series flexplate only fits a Gen III / LS series and the engine crank is recessed .400”. There are a few unique things about the torque converters that bolt to the flexplate. The spacing of the flexplate from the back of the block is the same as early GM blocks. The flexplate is dished out .400” to compensate for the crank. The differences come into play as to the bolt pattern of the torque converter to the flexplate and the snout length of the torque converter.
 
How do we adapt TH350,  700R4 to a Gen III / LS series engine? We offer a custom flexplate to fit a TH350,  700R4 and a crank spacer that  compensates for the shorter engine crank.
Note: This Advance Adapter kit does not work with a 6.0 engine with cast-iron cylinder heads.
 
Note: Kit will not fit 2014 & up Gen V engines (New LT1 V8 & 4.3 V6, 5.3, 6.2)

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