SR20 Red top or black top??? SR gurus? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

VQZ33 · 03-01-2011, 07:06 PM

alright everyone I know for sure I have a s13 motor but I'm frustrated to not know wether it is a blacktop or redtop. It has a red top but has the cooling fins on the front of the motor, it says 52f on the head AND the block, i have the fat 02 sensor (pretty sure, i havent seen them side by side but if i remember right it looks about the size of my old 300zx 02 sensor), my injectors are purple... I guess to rephrase do i have the 54c internals like the blacktop also with the updated oil squirters? any advice/info would be great.... i dont feel like taking off the oil pan to look at the oil pickup... I can add pics for those who are curious...

03-01-2011, 07:06 PM	#1
VQZ33 Leaky Injector Join Date: May 2009 Location: Long Beach Age: 37 Posts: 74 Trader Rating: (2) Feedback Score: 2 reviews	SR20 Red top or black top??? SR gurus? alright everyone I know for sure I have a s13 motor but I'm frustrated to not know wether it is a blacktop or redtop. It has a red top but has the cooling fins on the front of the motor, it says 52f on the head AND the block, i have the fat 02 sensor (pretty sure, i havent seen them side by side but if i remember right it looks about the size of my old 300zx 02 sensor), my injectors are purple... I guess to rephrase do i have the 54c internals like the blacktop also with the updated oil squirters? any advice/info would be great.... i dont feel like taking off the oil pan to look at the oil pickup... I can add pics for those who are curious...