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Toymods » Tech & Conversions » can i bolt a 4AGE head 16 or 20 valve to a 4AFC block?

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towe_001
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August 2004
Re: can i bolt a 4AGE head 16 or 20 valve to a 4AFC block? Sat, 07 August 2004 14:59 Go to previous messageGo to previous message
What do you mean by
"same block, but different internals, ie these will need to be changed.... "?
Cause i'm running a 4af block with a 4ag head and the only mod that i had to do was swap the 4af water pump for the 4ag pump because the belt guide on the 4af was in the way of the belt.
There are some minior differences between blocks mostly bolt locations (like theres no bolt hole for the intake support bracket).
Yes the internals are different. The crank isn't lightened like the 4ag and the pistons are of the dished variety where as the 4ag has fly-cut pistons. And you'll be stuck with the 4af flywheel. The oil pumps are the same.
Make sure the you use the 4ag head bolts as the 4af bolts are of two different lengths and neither are the same length of the 4ag bolts. If you don't have the dipstick from the 4af, you'll have to use the dipstick and its tube from the 4ag. Cause the 4ag dipstick is shorter. Never got a 4af stick with mine so i wouldn't have a clue as to how short.
But performance wise i don't really think there's much of a difference.But about the only thing that i've noticed is that the
4af-gejavascript: insertTag(document.post_form.msg_body, '', ' Laughing '); doesn't spin as quik as the 4ag but with that said i've had it dancing at 7000-8000rpm more then once.

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SubjectPosterDate
Read Message   can i bolt a 4AGE head 16 or 20 valve to a 4AFC block? dave/ae92Mon, 31 May 2004 15:29
Read Message   Re: can i bolt a 4AGE head 16 or 20 valve to a 4AFC block? JohnnyTue, 01 June 2004 00:33
Read Message   Re: can i bolt a 4AGE head 16 or 20 valve to a 4AFC block?  towe_001Sat, 07 August 2004 14:59
Read Message   Re: can i bolt a 4AGE head 16 or 20 valve to a 4AFC block? sideshowSat, 07 August 2004 15:56
Read Message   Re: can i bolt a 4AGE head 16 or 20 valve to a 4AFC block? JohnnySun, 08 August 2004 01:25
Read Message   Re: can i bolt a 4AGE head 16 or 20 valve to a 4AFC block? kayot1kSun, 08 August 2004 10:55
Read Message   Re: can i bolt a 4AGE head 16 or 20 valve to a 4AFC block? towe_001Sun, 08 August 2004 12:44
Read Message   Re: can i bolt a 4AGE head 16 or 20 valve to a 4AFC block? JohnnyMon, 09 August 2004 07:14
Read Message   Re: can i bolt a 4AGE head 16 or 20 valve to a 4AFC block? towe_001Mon, 09 August 2004 16:08
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