what weight oil do you use in a 400 hp 350 small block

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Nov 27, 2003 | 11:42 AM

SHAGME

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From: The Garden State?? Bergan County

Car: 1988 IROC-Z

Engine: 355ci TPI WORKED TO THE BALLS!

Transmission: 700R4 T-56 coming

what weight oil do you use in a 400 hp 350 small block

thnks I live in jersey and its getting cold its a 355 500miles on it so far thnks

Nov 27, 2003 | 11:51 AM

RB83L69

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From: Loveland, OH, US

Car: 4

Engine: 6

Transmission: 5

Same as you'd use in any other motor with similarly normal power output...

I'd recommend 10W-30 high quality full synthetic such as Mobil1, Amsoil, RedLine, Royal Purple, etc.; maybe Valvoline; not Castrol or Pennzoil.

Nov 27, 2003 | 04:19 PM

25THRSS

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From: Glen Allen, VA

Go as thin as you can IMO. Thicker oil just robs you of hp.

Nov 27, 2003 | 08:11 PM

SHAGME

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From: The Garden State?? Bergan County

Car: 1988 IROC-Z

Engine: 355ci TPI WORKED TO THE BALLS!

Transmission: 700R4 T-56 coming

ok thnks guys appriciate it happy TURKEY DAY GOBBLE GOBBLE

Nov 27, 2003 | 11:06 PM

breathment

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From: Bedford, Tx

Quote:

Originally posted by RB83L69
Same as you'd use in any other motor with similarly normal power output...

I'd recommend 10W-30 high quality full synthetic such as Mobil1, Amsoil, RedLine, Royal Purple, etc.; maybe Valvoline; not Castrol or Pennzoil.

i know you highly recomend Amsoil.. and i understand all your other recomendations except for NOT using Pennzoil. I thought i remember seeing some test that said the Pennzoil Synthetic was just below Mobil 1? its been a while but im just curious because i like to have all the information i can about this sorta stuff. and im not trying to start a "wich oil is better" thread. im only concerned with pennzoil. i dont even use it (i use mobil 1) but like i said im jsut curious here.