4.3 Radiator adequate?

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4.3 Radiator adequate?

Postby dear1700 » Sun Jul 17, 2016 4:13 pm

Can someone please help identify this frankenstein radiator? It measures 27.5" by 17" thats including the endtanks. I like the filler neck, but its not needed to be like that in my case. I can sit it about 1-2" forward from where it is now with slight modification of my support (cut the angled "ducts" off).
I am just wondering if a stock 4.3 rad would be fine with the intrepid fans. She's a mild 305 somewhere north of the 200hp range. Seems to cool fine now with the rad and 16" flex fan but wanting to reduce engine load at speed and going with electric fans and fins on my current rad are flaking off due to age.

Thanks for the help! :thumbup: Image[/URL]
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Re: 4.3 Radiator adequate?

Postby baktrak » Tue Jul 19, 2016 4:08 pm

4.3 rad with the intrepid fans would be more than enough for a 305
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Re: 4.3 Radiator adequate?

Postby dear1700 » Thu Jul 21, 2016 1:18 am

baktrak wrote:4.3 rad with the intrepid fans would be more than enough for a 305


Awesome, I'll pick up a new 4.3 rad. Seen them for just over $50 new on eBay. And it'll have the correct tranny lines already which is a big plus. I don't trust those shiny Chinese rads.
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Re: 4.3 Radiator adequate?

Postby sphere478 » Mon Jul 25, 2016 6:47 am

Get the one for a 4.3 4x4 with oil cooler. Has a bigger core. I use one of thsoe on my 406
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Re: 4.3 Radiator adequate?

Postby dear1700 » Sun Mar 26, 2017 11:26 pm

I finally have gotten around to getting a 4.3 rad out of the junkyard (looks brand new) but it was out of a 2nd gen. How is it suppose to mount to the core support in a first gen? My old radiator wasn't stock, not really sure what the heck it was. But the plastic piece (shroud) wasn't going to work on the 4.3 rad at all. The 4.3 is actually an inch shorter but a few inches wider than the other one. I can fab something up just wondering if theres a stock part or something easy to mount her up. Thanks!
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Re: 4.3 Radiator adequate?

Postby Rickracer » Mon Mar 27, 2017 7:12 am

dear1700 wrote: ...The 4.3 is actually an inch shorter but a few inches wider than the other one....

That's because it's from a 2nd Gen, the 1st Gen is an inch taller. :wink: 8)
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Re: 4.3 Radiator adequate?

Postby dear1700 » Mon Mar 27, 2017 1:45 pm

Ok, so I just need to fab up a top mount for it? If so thats fine, was just looking to see if there was a shortcut or something easy I didn't know about.
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Re: 4.3 Radiator adequate?

Postby dear1700 » Sun Apr 09, 2017 10:40 am

Just wanted to report that after making custom brackets, the radiator cools excellent. I also switched to electric fans taken from a Mercedes S430. They were setup as pushers in the S430 but I have them as pullers. Cools nicely never above 200 and cools right down when fans kick on. I'll grab a pic later of the fans, went with those because Mercedes fans I'm sure will last quite a bit longer than F*rd or Chrylser products. Never been a fan of those.

And I have about $80 in the radiator and fan setup. :boink:
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Re: 4.3 Radiator adequate?

Postby XXXXXXXX » Tue Apr 11, 2017 1:12 am

How hot is it there?

And yes please post a photo of your fans.

Thanks X
82 S10 Longbed.. stock 160hp 305.. b&m 144 blower.. 7lbs.. stock 801 heads.. holley 600dp.. percys adjust a jet in the front & rear.. headman 1 1/2 shorty headers.. 2 1/4 dual exhaust with hooker aero chambers.. msd with boost timing master.. 2500 stall .. 700r4 .. 3.42 posi fact s10 disc brake rear end. 275/60/15 Nitto Extreme 555 drag radials
(keeping the 600dp for now to reduce boost until I can get a larger upper pulley then going to my quick fuel 750dp)
(went to the 750dp overboosted and hurt something in the engine.. LOL.. will update soon)
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Re: 4.3 Radiator adequate?

Postby dear1700 » Wed Apr 12, 2017 2:20 pm

https://goo.gl/photos/wdYwXeeXPm6dQvzf7


hopefully this linkwill work correctly. I absolutely despise photobucket and the spamming advertisments they bring.

The temp the other day was a good 75 degrees out. Only downside to these fans is there is one motor and it uses a small belt to go from one fan to the next. But its $7 online for the belt, not a big deal when it goes bad.
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Re: 4.3 Radiator adequate?

Postby XXXXXXXX » Thu Apr 13, 2017 4:09 pm

OK thanks... let us know what happens when It gets 95 deg.

X
82 S10 Longbed.. stock 160hp 305.. b&m 144 blower.. 7lbs.. stock 801 heads.. holley 600dp.. percys adjust a jet in the front & rear.. headman 1 1/2 shorty headers.. 2 1/4 dual exhaust with hooker aero chambers.. msd with boost timing master.. 2500 stall .. 700r4 .. 3.42 posi fact s10 disc brake rear end. 275/60/15 Nitto Extreme 555 drag radials
(keeping the 600dp for now to reduce boost until I can get a larger upper pulley then going to my quick fuel 750dp)
(went to the 750dp overboosted and hurt something in the engine.. LOL.. will update soon)
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