Thread: Big Block...safe running temperature?

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Thanks a lot for the input. A few friends that run their big blocks on the street, felt that it was too hot, thinking that the alum. heads were at risk. I questioned that logic, since I previously had a couple of built c5 Corvettes that always ran at 210 - 220. Yes, they were LS small blocks, but they also had alum. heads. Thanks, again.

Originally Posted by lodilobo

Thanks a lot for the input. A few friends that run their big blocks on the street, felt that it was too hot, thinking that the alum. heads were at risk. I questioned that logic, since I previously had a couple of built c5 Corvettes that always ran at 210 - 220. Yes, they were LS small blocks, but they also had alum. heads. Thanks, again.

well i had a 548 that ran at 220 all the time. it ran the best warm past 160 .i was going to rering/rebearing it as we beat the hell out of that engine was thinking it would be toast inside it was like the day i put it together so that change my way of thinking about water temp 15 years ago. were the sender is comes in to play as well you may not be as hot as you think ??