MSD Ignition 6425 6AL Ignition Control Box

Features

• With soft touch rev control
• Higher output with 530 primary volts and 135mj of spark energy
• Efficient components use less current to produce more power
• Set an RPM limit on the 6AL with two rotary dials
• Same bolt pattern as the original 6AL with a lower profile housing

Description

MSD Digital 6AL Ignition with Rev Limiter MSD Ignition

Brand MSD

Item Weight 3.09 pounds

Product Dimensions 9.4 x 2.4 x 9.4 inches

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Item model number 6425

Manufacturer Part Number 6425

OEM Part Number 6425

Folding No

ASIN B004EGZU42

Customer Reviews 4.6 out of 5 stars 110 ratings 4.6 out of 5 stars

Best Sellers Rank #74,050 in Automotive (See Top 100 in Automotive) #2 in Automotive Performance Ignition Control Units #14 in Automotive Replacement Ignition Control Units

Shipping Weight 3.3 pounds (View shipping rates and policies)

Domestic Shipping Item can be shipped within U.S.

International Shipping This item is not eligible for international shipping. Learn More

Date First Available December 1, 2010

abunda_amazon_reviews Quality Duraspark ignition upgrade for my 1988 Jeep YJ Wrangler 4.2L. Lots of YJ owners go with an HEI distributor but I preferred to keep my original Duraspark distributor and use the Digital 6AL MSD Ignition because it is much better quality with more features and benefits. Some of those include, multiple spark, built in adjustable rev limiter, powerful spark at higher RPMs, lower voltage needed for cranking and extras like the capability of later adding the Adjustable Timing module if you find the need to retard/advance on the fly. If you’re really serious about your Jeep and want a top notch ignition, look no further the MSD 6425 is the perfect box for your ride.;;Reviewed in the United States on January 30, 2018;;5.0 out of 5 stars;;Quality Duraspark ignition upgrade for my 1988 Jeep YJ Wrangler 4.2L;;Marco Garcia;;/gp/customer-reviews/R1ZAJ7KD41UJBO/ref=cm_cr_dp_d_rvw_ttl?ie=UTF8&ASIN=B004EGZU42;;;I've installed these in a few of my Porsche 911s to replace the old capacitive discharge systems of the 60's and 70's. This is a great product, I've never had one fail even on my race cars. The improvement is noticeable; easier starts in all weather, smoother idle, slightly snappier throttle response. The kit comes with little odds and ends to make installation a breeze.;;Reviewed in the United States on June 12, 2018;;5.0 out of 5 stars;;Noticable improvement, great product;;Lidz;;/gp/customer-reviews/R1ELQTYUP1AGDW/ref=cm_cr_dp_d_rvw_ttl?ie=UTF8&ASIN=B004EGZU42;;;My vintage 1973 Mach 1 Mustang already had a MSD ignition system that worked perfectly. But, it had the 6425 6 ignition control module, and I wanted to be able to limit the engine RPM. The 6AL unit plugged right into the same connector that previously fed the convention "6" module with no rev limiter feature. I "tested" the 6AL and found it worked perfectly to keep the engine RPM within the limits I set the modules to.;;Reviewed in the United States on June 10, 2019;;5.0 out of 5 stars;;Worked perfectly;;G. Hale;;/gp/customer-reviews/RPVJWKQDWI7WY/ref=cm_cr_dp_d_rvw_ttl?ie=UTF8&ASIN=B004EGZU42;;;Along with the blaster coil really “wakes up” engine performance.;;Reviewed in the United States on April 26, 2019;;5.0 out of 5 stars;;Tremendous upgrade on factory ignition system.;;Ken Yamashiro;;/gp/customer-reviews/R33HU6ZE7UDCQR/ref=cm_cr_dp_d_rvw_ttl?ie=UTF8&ASIN=B004EGZU42;;;Bought for my 350 SBC. Works perfect!!!;;Reviewed in the United States on September 28, 2016;;5.0 out of 5 stars;;Perfect!;;Caesarsoundz;;/gp/customer-reviews/RYZT2JF043F09/ref=cm_cr_dp_d_rvw_ttl?ie=UTF8&ASIN=B004EGZU42;;;I installed this on an older 95 LT1 v8 it really helped give it a boost in spark and car runs well. Note this was not a stock engine. It has a large cam, ported heads and Headers. Another note. I also have the MSD coil but still use the stock opti spark distributer. one thing that makes a big difference is using the correct oil seal on the distributer once I finally installed the proper oil seal that looks like a standard oil seal all the problems with the opti spark went away after cleaning the oil out of the inside. Don't need to waste money on a 595.00 MSD distributer. Iv'e only heard bad reviews about them. this opti spark distributer was only 45.99;;Reviewed in the United States on August 14, 2019;;5.0 out of 5 stars;;Fantastic performance;;Bob Rains;;/gp/customer-reviews/R1H07W95ABR2YR/ref=cm_cr_dp_d_rvw_ttl?ie=UTF8&ASIN=B004EGZU42;;;Running it on a high compression forged 22R/20R hybrid motor in a '75 Celica. Works great, car starts perfect and haven't had an issue with flooding which is great.;;Reviewed in the United States on September 11, 2019;;5.0 out of 5 stars;;75 Celica;;Austin Ramsay;;/gp/customer-reviews/R3DXK5P81ETQ9X/ref=cm_cr_dp_d_rvw_ttl?ie=UTF8&ASIN=B004EGZU42;;;Good Product, its much bigger foot print than than my old FAST but MSD seems to have better product support online. FAST is good if you call but hard to find what I was looking for online;;Reviewed in the United States on June 1, 2019;;5.0 out of 5 stars;;MSD vs FAST;;Amazon Customer;;/gp/customer-reviews/R3GUNYEPREK0TZ/ref=cm_cr_dp_d_rvw_ttl?ie=UTF8&ASIN=B004EGZU42