SS Lancer
Well-Known Member
How hard is it to make a 66 and earlier intake fit later LA cyl heads ??
64 and
Found a interesting intake for small block but it has pre 67 or
Earlier bolt pattern curious how much work is needed to make it fit LA engines.
Ok thanks64 and 65 have the smaller bolts and the odd angle. 66 and newer had the normal bolts and angle.
Ok but it can be done correct ???You have to hog out the holes larger and at a different angle. Kind of a Mickey Mouse modification to make it work.
Ok. Let's back up the bus here. What intake do you want to use and what do you want to bolt it on? If your engine is a 67 or newer small block those 4 barrel intakes are a dime a dozen.Ok but it can be done correct ???
Im only asking because Offy is still in business but they are not producing this intake anymore for the small block Chrysler.
I have new alum heads going on a LA$75 swap meet price to buy an edelbrock performer intake to fit late heads.
...or $50 going price for factory iron intake.
or are you re-drilling a late intake to fit early heads?
Want to intall pre 66 intake on 68 318 with alum heads .I have new alum heads going on a LA
Intake is a medium rise 2x4 offy new
If I want to convert To 2x4 set up this intake will work for me.
That makes more sense. If you want it it done nice have a machine shop do it so they can machine bolt/washer pockets for the fasteners.I have new alum heads going on a LA
Intake is a medium rise 2x4 offy new
If I want to convert To 2x4 set up this intake will work for me.
Ok good dealI have seen a few early intake modifications. Afro Ingenuity comes to mind.
That makes more sense. If you want it it done nice have a machine shop do it so they can machine bolt/washer pockets for the fasteners.
Ok good advice thank you intake is north of $500 so if it want work correctly then I need to leave it alone.I don't think the intake is thick enough to machine the angle and still hold it well. I seen a guy machine thick washers at a angle and it looked liked it worked well but tightening them up will probably be a pain
Offy used to have both patterns. Metal was made at the early angle and was spot faced to use socket head cap screws for 66 up heads. If you want to use on early heads just use a washer to bridge the spot face. Does the intake have spot faced holes? I have a nice pair of 64-65 heads.
I want to use intake on new modern alum LA cyl heads.
This is from a dealerIf the intake bolt surface is not spot faced, you could do that. Try calling Offenhouser and ask if they can do that for you. I'll try to get a picture of what I'm talking about.
Ok - thanks yes if small port it certainly WONT work for my build thank you very much im better off just leaving it aloneIs that what you are looking to buy? That is what I am talking about. I thought of something else. If it truly is a 64/65 273 intake, It would have the small 273/318 intake ports. I'm not sure why you would want to use it with Large 340/360 intake ports...
Ok - thanks yes if small port it certainly WONT work for my build thank you very much im better off just leaving it alone
I already have this new
Port O Sonic
And fixing to have it port matched and worked over it will do for now .
Yes - I saw that all modifications pertained to a Thermoquad and not a 4150 ###That is one of the best intakes, back in the day. There were published mods for Super Stock to get the fuel distribution right at high rpm.