f100 5.8 towing a v20 uphill

aussie

aussie

Senior Member
well my poor old girl struggled pulling my v20 upa big hill started to get reall hot doing 50mph in 3rd gear looks like i have to spend some money on her too well she is older than my v20 so what do i expect :sad:
 
ohoh

THat doesn't sound so good, my '69 f-100 with a 360 (same block, right?) hardly notices the v back there, until you try to stop!
 
my brakes work well on the trailer 360 never heard of a 360 ford v8 well mine runs on lpg u call it propane kills the horse power quite abit
 
garbubba said:
THat doesn't sound so good, my '69 f-100 with a 360 (same block, right?) hardly notices the v back there, until you try to stop!
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The old 360 is the second smallest big block Ford. Not counting the special HD truck engines it was something like 352, 360, 390, 406, 410, 427, 428, 429 then the 460. The 360 and 390 had low-rise heads and an almost flat intake runner angle, so didn't make power much past 4K, but they're stump pullers. The 360 was only available in trucks.

The 5.8 is probably a 351 Windsor motor, very similar to the old 5.0 engine, but with higher deck height. The heads and cams are slightly different but will interchange to a 5.0 or 302 in cid. I've pulled a V20 with much less, that 5.8 should be plenty if it's running right unless it's a victim of a 3.00 gear ratio as many were.

Ford did make lots of variations on their motors, in just the 5.8 they made a Windsor, Cleveland and Modified.
 
Steplift 72' said:
The old 360 is the second smallest big block Ford. Not counting the special HD truck engines it was something like 352, 360, 390, 406, 410, 427, 428, 429 then the 460. The 360 and 390 had low-rise heads and an almost flat intake runner angle, so didn't make power much past 4K, but they're stump pullers. The 360 was only available in trucks.

The 5.8 is probably a 351 Windsor motor, very similar to the old 5.0 engine, but with higher deck height. The heads and cams are slightly different but will interchange to a 5.0 or 302 in cid. I've pulled a V20 with much less, that 5.8 should be plenty if it's running right unless it's a victim of a 3.00 gear ratio as many were.

Ford did make lots of variations on their motors, in just the 5.8 they made a Windsor, Cleveland and Modified.
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well its a cleveland 351 and 3.5 in the diff
 
the hill im talking about most big trucks drop to 35mph the hill is about 4 mile long my radiator needs replacing its only 18 years old and the truck hasnt worked that hard for a few years
 
See if you can find a cool dual 1 1/4" core radiator for it as that will increase your cooling capacity ALOT. Also maybe invest in a set of dual electric fans for her. Was the fan clutch roaring away at yeah going up the hill? If not maybe you just need to clean the rad out and replace the old fan clutch ast hey do need to be replaced about every 5 years or so. Not sure what size fan you have, but maybe a HD fan clutch and one of the newer composite plastic fan blades would fix your problem.
 
ok ill check if my head gaskets r leaking or the heads r cracked there r the 3 ways i check them

(1) get engine hot remove all sparkplugs and burn your hands and place a screwdriver in each cylinder then after a min check for moisture on the screwdriver

(2) we call it TEE KAY HEAD TESTER

(3) a gas analiser in the raditor filler to see if any exhaust gases r present

it all is good then ill buy a new larger core radiator and fit themo fans os a falcon and a switch to turn them on of a 88 ford laser they r a one wire switch that supplys earth to the relay

and yes my truck has a clutch fan on it

well winter is getting close now so it can wait a while as im poring money into my boat
 
A simple quick check is to check the cooling system once the engine has sat overnight to cool off. If it is holding ANY pressure you have a head gasket leaking. Also check the overflow and the radiator under teh cap for any signs of oil or burned appearance.
 
I Wonder :head: you said that your speed with the 3.7 was very slow and now your truck cant pull a hill with the v in tow ..Just a though ,,i wonder if your foam under the floor is totally saturated and water loged this would add hunderds of unwanted pounds to the boat whick may cause both problems
 
bksah2 said:
I Wonder :head: you said that your speed with the 3.7 was very slow and now your truck cant pull a hill with the v in tow ..Just a though ,,i wonder if your foam under the floor is totally saturated and water loged this would add hunderds of unwanted pounds to the boat whick may cause both problems
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well how do i check that
 
aussie said:
well how do i check that
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Easy way would be to lift the floor panel by your fuel tank, and then take a 1" piece of copper pipe, sharpen one end on a grinder, and take a core sample of the foam in that area. If the foam is dry you should be ok.. if it's saturated with water that's not so good. :head:
 
I think you can also get to some of the foam from taking out the rod holders..I know the foam is for safety but i HATE the stuff ..Had a few boats over the years and they all had saturated foam from one degree to another..Its like wet snow and when its gets wet it weights a TON.. the bad part is there is no way to get it out ,,,you have to dig it out.. I did here that there was a liquid that you can pour on it and it will desove it but i have looked and looked all over the net and in stores and cant find the stuff ..I have poured everthink from gas to acid on it and no luck..:cry:
 
Break
Out
Another
Thousand

Didn't you know that's what BOAT stood for? I know I sure learned this one teh hard way, so don't feel alone.
 
well i dont mind doing the work seems like rust in a car u find a small hole then when u start cleaning its half the car lol
 
how old is your hull? not very many had foam under the deck from the mid 80's & older. mine is an 83 and no foam, i think all of the in deck fuel tanks were foamed in, but that is only in the fuel cell compartment.
 
phatdaddy said:
how old is your hull? not very many had foam under the deck from the mid 80's & older. mine is an 83 and no foam, i think all of the in deck fuel tanks were foamed in, but that is only in the fuel cell compartment.
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mine a 88 mopdel havnt checked it yet but i will
 
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