Flat-tappet 302 Cyl head swap

Mustangfan99 · April 17th, 2008, 06:44 PM

I have an 84 f150 with a flat tappet 302 in it that I am looking to put a set of Gt40 cyl heads in from an explorer, since the block i have is not a roller block, and the heads I will be putting in it are from a roller block am I going to have any problems? Or am I in the clear? any help is greatly appriciated, thanks!

saldoggs · April 17th, 2008, 09:59 PM

you can put the heads on you will have to make sure the headers will clear the spark plugs the explorer heads have a different angle on the plugs then the regular gt 40 heads and make sure your push rods are the correct length and you should be fine

woody1 · April 17th, 2008, 10:23 PM

Originally Posted by saldoggs

you can put the heads on you will have to make sure the headers will clear the spark plugs the explorer heads have a different angle on the plugs then the regular gt 40 heads and make sure your push rods are the correct length and you should be fine

the explorer came with 40's and 40p's if there 40's hes fine any header works, no difference just cause they were on an explorer

Iwannagofast · April 17th, 2008, 10:31 PM

yeah just make sure you get the right length push rods

PJC Racing · April 18th, 2008, 04:42 AM

The springs will have more spring rate but not so much that it should cause a problem.

April 17th, 2008, 06:44 PM	#1
Mustangfan99 Enthusiast Join Date: Sep 2006 Posts: 576 iTrader: 0 reviews	Flat-tappet 302 Cyl head swap I have an 84 f150 with a flat tappet 302 in it that I am looking to put a set of Gt40 cyl heads in from an explorer, since the block i have is not a roller block, and the heads I will be putting in it are from a roller block am I going to have any problems? Or am I in the clear? any help is greatly appriciated, thanks! __________________ V6 power!

April 18th, 2008, 04:42 AM	#5
PJC Racing Regular Join Date: Feb 2008 Location: Tampa, Fl Posts: 104 iTrader: 0 reviews	The springs will have more spring rate but not so much that it should cause a problem. __________________ 89 LX Coupe: Factory 5.0, common performance and suspension bolt-ons (306 build inprogress) 86 GT: (current 1/4 project) will have primarily Team Z suspension and chassis additions, 408 with nitrous in the works

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April 17th, 2008, 09:59 PM	#2
saldoggs Regular 1993 mustang lx convertib Join Date: Jan 2008 Location: staten island nyc Posts: 146 iTrader: 0 reviews	you can put the heads on you will have to make sure the headers will clear the spark plugs the explorer heads have a different angle on the plugs then the regular gt 40 heads and make sure your push rods are the correct length and you should be fine

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