20 lb radiator cap? 5.3 ls swap - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BR3W CITY · 10-24-2013, 02:43 PM

I run an overflow on a sbc rad, with a 16lb cap. No problems whether coolant or water.

Robznob11 · 10-25-2013, 04:06 PM

Its also good to know that the higher the pressure the higher the boiling point of the coolant. If you do boil over with a 20 lb cap the coolant will be so hot that there will be more carnage with the motor

10-24-2013, 02:43 PM	#1
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: 20 lb radiator cap? 5.3 ls swap I run an overflow on a sbc rad, with a 16lb cap. No problems whether coolant or water. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

10-25-2013, 04:06 PM	#2
Robznob11 Registered User Join Date: Feb 2004 Location: brownfield texas (west texas) Posts: 1,937	Re: 20 lb radiator cap? 5.3 ls swap Its also good to know that the higher the pressure the higher the boiling point of the coolant. If you do boil over with a 20 lb cap the coolant will be so hot that there will be more carnage with the motor __________________ The Ghost 67 short wide full custom. 550 hp LSX, 4l80E, narrowed 9". Body dropped w/air ride! ........................ ___ .........________//__{\_____ ,,,,,,,/__(⊙)___//___/__(O)_/ @disciple2.rc 💪instagram💪 LED TAILS



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