Description: Produces an incredible 7.5 amps of current, Enables you to adjust the rev limiter without removing the cap, Features an advanced dwell control for improved high rpm output, The built-in adjustable rev limiter can easily be set externally, It easily installs to non-computer controlled (4-Pin) HEI housings MSD 83647 Heat HEI Ignition Module Sku # 54783647 Mfr. Part # 83647 Condition New Brand MSD Sold Each Details Info This all new Heat HEI Module supersedes the current PN 83645. Using upgraded components, the HEAT produces high output for stock and MSD applications plus has a built-in rev limiter that is more accurate and easier to set with the engine running. Works with non-computer controlled (4-Pin) HEI housings.Easily installs to non-computer controlled (4-Pin) HEI housingsBuilt-in adjustable rev limiter can easily be set externallyAdvanced dwell control for improved high rpm outputThe Hottest HEI Module you buy-period!Produces an incredible 7.5 amps of juice!Adjust the rev limiter without removing the cap!Fits in stock HEI distributors Charts (PDF) (PDF) Installation Tips A tachometer is required to program the rev limiter Specs GTIN Code 085132836475 Reviews Easy to install, works like it should Rated by Romeo on March 14, 2020 Summary: Lets go racing!!! Yes, I recommend this product. Works well Rated by Jr on November 22, 2018 Summary: Fixed my high rpm misfire. Only reason it gets less than 5* is that it doesnt appear stock. It has a extra wires and if they pull the cap its clear this is not OEM. This same part inside a stock looking module would be better. That being said, the pertronix flame thrower failed on me after two nights which is what lead me to this. Happey with it, bit I wish I could have this performance in a stock looking package. Cons: Doesnt look stock Needs matching coil Pros: Rev limiter Works well at high rpm racing Yes, I recommend this product. Worked as designed Rated by pem on May 14, 2017 Summary: Quality product that worked Pros: Easy To Set Up I needed two tach inputs one for the tachometer and one for the EFI Yes, I recommend this product. not worth the hype Rated by msdstinks on September 27, 2016 Summary: so far no advantage to a stock GM module on a 500+hp carburated car... except having a rev limiter. car might start a very little bit better but idle seemed weaker & no noticeable difference in any RPM up to 6000 vs the stock module. makes for an expensive rev limiter! Cons: No Better Than A Stock Gm No, I would not recommend this product. this is and easy to install rev limiter Rated by rich n on August 13, 2015 Summary: Good product. Pros: Easy To Install Yes, I recommend this product. Related Items / Suggested Parts MSD 8225 HEI High Performance Direct Replacement Coil GM HEI Distributor Mechanical Advance Curve Weight/Spring Kit HEI External Timing Adjustment Knob MSD 8416 GM HEI Distributor Cap and Rotor Scott Performance 10mm HEI Spark Plug Wire Set, Black MSD 35599 8.5mm Spark Plug Wires Set, S/B Chevy HEI, Under Headers Tech Support We're here to help before and after your purchase. If you have a question or need assistance with one of our products, please contact us through eBay Messaging and a knowledgeable Speedway Motors team member will be happy to help. About Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 72 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.
Price: 164.99 USD
Location: Lincoln, Nebraska
End Time: 2024-08-18T00:02:33.000Z
Shipping Cost: 0 USD
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Item Specifics
Return shipping will be paid by: Seller
Returns Accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Return policy details:
Type: Ignition Modules
Item Length: 8.00
California Prop 65 Warning: True
Manufacturer Part Number: 83647
Brand: MSD Ignition