n/a 4.3 v6

[bezerk]

i was wondering,
if i was going to put a Standard 4.3l v6 in my Ty, What will be a safe boost level, with a stock turbo, and can the stock headgaskets handle that amount of boost?

Reason why i'am asking is that i want to sell the Red Ty, and don't want to spent money on it to repair it.

 

[dgoodhue]

Re: n/a 4.3 v6

I would try base boost with just the actuator or 9 psi. I have no experience, but I remember somebody getting the wrong pistons and them telling me it worked fine with base boost, but over that it pinged like crazy. This is just going off memory of a few years ago, so I could be wrong.

 

[sean]

Re: n/a 4.3 v6

fireo, i think that what he goes by, he's done it and i think he's running about 10 psi on a cpi block

 

[bezerk]

Re: n/a 4.3 v6

so, the Cam is the same as in our trucks? thanks for the info

 

[midnightbluS10]

Re: n/a 4.3 v6

On the TBI engine, yes it is the same cam.

Any later 4.3 cam with a tad more aggressive cam.

 

[critical]

Re: n/a 4.3 v6

A cpi vortecs cam is about .580 inch shorter than the Z blocks cam cause of the balanceshaft.
Kinda sucks. I have a spare stock sy cam and a 98 block but cant use one w/ the other.
Which reminds me, are cams cast iron or cast steel?

 

[vortecfiero]

Re: n/a 4.3 v6

im running 10 psi with stock bbzb fuel and spark tuning. Only on the hottest daysand pushing it hard did i get some KR.. usually around 4deg. My next step is a more efficient compressor and water/alky injection.. oh and spark and fuel tuneing.
My block is a 95 CPI with the black plastic timeing cover.

 

[bezerk]

Re: n/a 4.3 v6

thanks for sharing all your info.