Page 82

RESTO MOD

COOLING Designing the perfect LS Swap cooling system

Words / Photos Cam Benty

N

o underhood headache is as frustrating as an overheating engine. Historically, big horsepower classic muscle cars required big radiators to keep the engine from percolating under pressure. Four core copper radiators were common, dressed with clutch fans and V-Belt drives. Today, one of the most popular Resto Mod builds involves dropping some version of LS engine between the frame rails of a classic GM (or Ford) muscle car. And why not? These engines make big power, are compatible with a huge number of upgrades and can deliver a wide range of benefits both performance and comfort oriented. For our ’71 Pontiac Firebird project, it was important to have a cooling 80  Power & Performance News / Vol. 7, No. 1

system that was compatible with the 525 hp LS3 engine. Luckily the folks at Mattson’s Radiator, in Stanton, California, offer a complete drop-in system for LS swap applications. In addition to the obvious radiator fitment, they also offer everything needed to complete the install — electric fans, shroud, wiring harness and relay, air conditioning condenser, automatic transmission plate style cooler, and a lot more. If you stir in the fact that they have more than 50 years of experience, we felt they were a great place to fully understand everything involved. As a new twist, the folks at SPAL, one of the greatest names in electric fans and fan systems today, have introduced a number of new break through products. At the head of the class are

their “brushless” fans that reduce heat and provide increased cooling, lower amp draw, great durability and the ability to run at less than 100 percent speed to avoid the very common electric fan roar that is a signature sound of muscle cars (and OE) today. As noted, Mattson Radiator has taken fan installations to an art form. Our installation was their first brushless fan system install in their long history, allowing them to integrate these new SPAL products into our LSswap application. While these fans are more expensive than the standard, high quality non-brushless fans (also offered by SPAL), the brushless products offer a better than good solution for those looking for the ultimate fan efficiency.

Profile for Xceleration Media

Power & Performance News Spring 2016  

Built upon a Resto Mod theme, this issue of Power & Performance News is packed full of DIY performance projects, car features and hardcore t...

Power & Performance News Spring 2016  

Built upon a Resto Mod theme, this issue of Power & Performance News is packed full of DIY performance projects, car features and hardcore t...

Advertisement