Blocking coolant lines to engine

[Post Vintage]

Can I block the coolant lines going to the intake manifold without any problems? I figure this water is like 90degC and wont do too much to the intake manifold as far as heat is concerned, will it? I have a massive VR thermo on there and good cooling system, VR radiator etc so surely it should be ok. Dont see the need for it.

[daron]

what are you actually trying to do
cool the motor?
if so run a 81o thermostat
factory they 91
dont run it too cool

[vt1538]

Shouldnt be a problem mate as it is only there to warm the intake charge. Having a warmer intake charge helps in cold conditions as it aids fuel vaporisation & combustion. BTW the non crossflow design will heat up the intake charge heaps anyway.

[Post Vintage]

That exhaust wrap should help me out a bit there shouldnt it? Ill block the lines off because in my old 202 this is what was done, same as my HJ but that had a holley carby. I think looking at cooling that engine before working on performance should be a priority. Also a 80deg thermostat is the go... since I have the VR radiator and thermo now it should keep temps down. Lots of pressure in those old holden engines.