what size heads should i go with?

1979bruiser · 08-20-2006, 10:20 PM

This will be my first post so be patient w/ me, I havent been around a mustang in 9 years and looks like things have changed a bit.So w/ that said what i know is what worked 9 years ago for my street car. This one is going to be a bit better though, I have a 79 w/ all 86 body and interior parts and just started to buy my parts for my motor that I am building . Its a 351 w/ a stock compresion pistons,reman crankw/ all new bearings, .30 over bore. as for the cam i am undecided as to what cam to run and rpm range and heads. I thought that I was set on gt40-p heads but have found a few adds in the back of magazines and now i am unsure.There are two sets,210cc intake and another set that is 190cc intake volume. If I were to go w/ either of these intakes i am leaning more towards the vic jr intake than the rmp intake , but if i stick w/ the gt40p headsi am going w/ the rmp intake and a cam that works in the rpm range.i also plan to go w/ 1 &3/4 long tubes w/ either of the larger heads. This car is for about 50/50 street driving on the weekends and strip use. What does anyone else think.( the reason i am looking at these two heads is because they are less than 700 dollars assembled ready to go) and the p heads i can get for 200 dollars for the pair.I do plan to do some hand porting (basic) and have a valve job done to the p heads if they are my choice.
thanks Dan.

1979bruiser · 08-20-2006, 10:21 PM

yes it will be carburated.

Fat0eknee · 08-20-2006, 11:15 PM

so ...what exactly are you trying to say?

custom cam, rpm air gap, afr 185/205's

there you go.

1979bruiser · 08-20-2006, 11:24 PM

afr's are out of my cost range.

lx mike · 08-21-2006, 07:02 AM

on a 351 the gt40p's won't be much more better than the heads it came with.

tmoss · 08-21-2006, 07:56 AM

unless you get someone like a Neil Erickson (Midwest Induction Technology) to port the GT40 heads - he's not outrageously expensive...........I've seen "resonable" used quite often about his pricing and his skills are top shelf.

1979bruiser · 08-21-2006, 08:52 AM

so are 210cc heads to big for a street / strip car?

Dark_5.0 · 08-21-2006, 11:01 AM

Quote:

Originally Posted by 1979bruiser

so are 210cc heads to big for a street / strip car?

No I have 192cc heads that are also ported on my 302.

210cc heads are great for a 351W.

08-20-2006, 10:20 PM	#1
1979bruiser Registered Member Join Date: Aug 2006 Location: budds creek md Posts: 100	what size heads should i go with? This will be my first post so be patient w/ me, I havent been around a mustang in 9 years and looks like things have changed a bit.So w/ that said what i know is what worked 9 years ago for my street car. This one is going to be a bit better though, I have a 79 w/ all 86 body and interior parts and just started to buy my parts for my motor that I am building . Its a 351 w/ a stock compresion pistons,reman crankw/ all new bearings, .30 over bore. as for the cam i am undecided as to what cam to run and rpm range and heads. I thought that I was set on gt40-p heads but have found a few adds in the back of magazines and now i am unsure.There are two sets,210cc intake and another set that is 190cc intake volume. If I were to go w/ either of these intakes i am leaning more towards the vic jr intake than the rmp intake , but if i stick w/ the gt40p headsi am going w/ the rmp intake and a cam that works in the rpm range.i also plan to go w/ 1 &3/4 long tubes w/ either of the larger heads. This car is for about 50/50 street driving on the weekends and strip use. What does anyone else think.( the reason i am looking at these two heads is because they are less than 700 dollars assembled ready to go) and the p heads i can get for 200 dollars for the pair.I do plan to do some hand porting (basic) and have a valve job done to the p heads if they are my choice. thanks Dan.

08-20-2006, 10:21 PM	#2
1979bruiser Registered Member Join Date: Aug 2006 Location: budds creek md Posts: 100	Re: what size heads should i go with? yes it will be carburated.

08-20-2006, 11:15 PM	#3
Fat0eknee I'm slow ...I know. Join Date: Dec 2003 Location: houston Posts: 518	Re: what size heads should i go with? so ...what exactly are you trying to say? custom cam, rpm air gap, afr 185/205's there you go. __________________ When you do things right, people won't be sure you've done anything at all...

08-20-2006, 11:24 PM	#4
1979bruiser Registered Member Join Date: Aug 2006 Location: budds creek md Posts: 100	Re: what size heads should i go with? afr's are out of my cost range.

08-21-2006, 07:02 AM	#5
lx mike Undescribable Join Date: Sep 1998 Location: Ft Myers Fla Posts: 1,539	Re: what size heads should i go with? on a 351 the gt40p's won't be much more better than the heads it came with. __________________ Rice Haters Club Member #101

08-21-2006, 07:56 AM	#6
tmoss Registered Member Join Date: Mar 2003 Location: Saint Louis, MO Posts: 634	Re: what size heads should i go with? unless you get someone like a Neil Erickson (Midwest Induction Technology) to port the GT40 heads - he's not outrageously expensive...........I've seen "resonable" used quite often about his pricing and his skills are top shelf. __________________ Tom (Torque) Moss 88Gt 5spd Vert, FLowmaster Catbacks, stock cam advanced 4° @ 108.5° ICL, NMRA prepped GT40P heads 1.85/1.55 valves and 1.7 rockers, MAC P headers Jet-Hot coated, 97 Exlporer intake (ported lower), TB and injectors. 277RWHP/330RWTQ (SAE). http://www.fastlanecars.com/

08-21-2006, 08:52 AM	#7
1979bruiser Registered Member Join Date: Aug 2006 Location: budds creek md Posts: 100	Re: what size heads should i go with? so are 210cc heads to big for a street / strip car?

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