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58x Conversion Hardware

About us

We specialize in GM fuel injection systems for SBC, LT1, and the variety of LS engines. Since 2003 we have been manufacturing brand new fuel injection engine harnesses and connector pigtails for GM engines and offering replacement harness components for GM fuel injection harnesses.

Modernize Your Early SBC, TPI, or LT1/LT4 Engine
Our 24x systems and 58x systems bring Gen III LS1 PCM control and Gen IV LS3 ECM control to these popular engines. Our 24x solution is the only replacement to the troublesome LT1 optispark distributor and has enabled amazing potential for these engines; even 8,000 rpm capabilities!
Location: United StatesMember since: May 13, 2013Seller: eficonnectionllc

Detailed Seller Ratings

Average for the last 12 months
Accurate description
5.0
Reasonable shipping cost
5.0
Shipping speed
5.0
Communication
5.0

Seller feedback (7,369)

  • eBay automated feedback- Feedback left by buyer.
    Past month
    Order completed successfully—tracked and on time
  • e***t (1231)- Feedback left by buyer.
    Past month
    Verified purchase
    EXCELLENT SELLER!!! OEM type quality, FAST shipping, nice to deal with! A+++++
  • eBay automated feedback- Feedback left by buyer.
    Past month
    Order completed successfully—tracked and on time
  • eBay automated feedback- Feedback left by buyer.
    Past month
    Order completed successfully—tracked and on time
  • eBay automated feedback- Feedback left by buyer.
    Past month
    Order completed successfully—tracked and on time
  • m***r (1253)- Feedback left by buyer.
    Past month
    Verified purchase
    Thank you very much

About us

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