351w swap - Page 3 - RX7Club.com - Mazda RX7 Forum

351w swap

Old 06-23-16, 08:42 AM
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Originally Posted by GFRENCH View Post
thank you
so i take it that i will need these and those rods and spring
where can i pick these up?
I don't know as you "need" one them. You can fabricate your own. Or if you want to get a bracket you can buy either an aftermarket bracket or you can get a used bracket off eBay pretty easy. Lots of options to get the job done.

Not sure if they are all the same or if they were engine specific. A bracket from a 390FE may or may not fit a 289/302/351W. I'd look for one from/for a small block myself.
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Old 06-26-16, 04:01 PM
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boys this is giving me a little trouble
race beat springs are rated at 145 lb per inch front and 110 lb per inch
351w with cast heads and intake is 498 lbs. aluminum intake is 11 lbs
and when the aluminum heads are installed claimed to be a 70 to 90 lbs weight saving
so maybe end with 420lb ish.
are those springs going to be ok?
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Old 06-27-16, 07:43 AM
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Aluminum heads will save you around 50 pounds total.
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Old 06-27-16, 08:39 AM
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I would go heavier in the front, around 300 or so
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Old 06-27-16, 10:12 PM
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were can i go for heaver rate springs for a sa22c?

Last edited by GFRENCH; 06-27-16 at 10:14 PM.
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Old 06-28-16, 10:37 AM
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Originally Posted by GFRENCH View Post
were can i go for heaver rate springs for a sa22c?
You can get tophats and adjustable spring perches and run 2.5" ID springs. That is my plan eventually. about 50 bucks on ebay
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Old 06-28-16, 05:26 PM
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wow
so do you mean those sleeves listed for ride height adj, and all those 2.5" id coils listed in 300, 500,700 and 800lbs?
also use on the stock shocks?
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Old 06-30-16, 12:08 PM
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Originally Posted by GFRENCH View Post
wow
so do you mean those sleeves listed for ride height adj, and all those 2.5" id coils listed in 300, 500,700 and 800lbs?
also use on the stock shocks?
yes those I think, can you send a link? Stock shocks are fine, but something adjustable would be preferred
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Old 06-30-16, 10:24 PM
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thanks andrew
i have a set of theses
from back in the civic days

i had no idea these could be used , they fit 2.5 id springs.
also i found pac racing springs made to order in any color and rate
i have ordered 2 in red and 500 lbs for the front and 2 in red and 300 lbs for the rear.


http://

Last edited by GFRENCH; 06-30-16 at 10:29 PM.
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Old 07-01-16, 11:26 AM
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You got lucky those sleeves look nice, you will also need tophats like these and maybe the weld on perches https://technotoytuning.com/universa...gs-22mm-center

You need to get 4.5" of 5" ID springs for the rear though if you are using the stock spring perches
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Old 07-02-16, 09:35 PM
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Originally Posted by Freeskier7791 View Post
You got lucky those sleeves look nice, you will also need tophats like these and maybe the weld on perches https://technotoytuning.com/universa...gs-22mm-center

You need to get 4.5" of 5" ID springs for the rear though if you are using the stock spring perches
man o man that web site has the best looking stuff i have seen
i have to have those camber plates and top hats
thank you for that info
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Old 07-07-16, 03:47 PM
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their stuff is decent, buddy of mine has their full coilover set up.
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Old 07-17-16, 09:35 PM
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guys last couple weeks i have been busy with the project
a local engine shop tells me they can redo the stock heads for 300 and yield vast better flow.
also i have been looking at any exhaust advise i can get . people are telling me a x pipe is the single best there is but i do not think there is enough room for duals.

will a y connection and a single pipe back be ok?
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Old 07-18-16, 11:51 AM
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should be fine, you can also run parallel duals, I think I am going with that setup on my car. Definitely cannot fit an H or X pipe
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Old 07-19-16, 12:55 PM
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These guys run a Y into a single setup on a 357 SBC and run 5.70's in the 1/8th, which is deep in the 9's in the 1/4. You should be fine.

http://grannys.tripod.com/20102.html
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Old 07-20-16, 10:04 PM
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ok thanks
i read today the flat tappet cams must have sulfer added at every oil change
comp cams 35-246-3 is a roller and on my list of maybe.
but i don't see any mention of oil on there flat tappet version

also on the comp site is a rpm act banner, what is this about?

Last edited by GFRENCH; 07-20-16 at 10:12 PM.
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Old 07-21-16, 08:12 AM
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Originally Posted by GFRENCH View Post
also on the comp site is a rpm act banner, what is this about?
Our EPA (Environmental Protection Agency) issued/clarified some rules that were long taken to mean one thing and they seem to want them to mean something else all of a sudden and it had the very strong possibility of strangling the entire performance aftermarket to point of making it collapse. Major uproar and the RPM act was introduced to counteract it.
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Old 08-22-16, 08:32 PM
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guys time for a update
busy summer coming to a end
still gathering parts needed for the 351w
today received a order from comp cams timing set and a ***** thumper cam
past weeks i got my new fuel pump , oil pump, water pump and some alt brackets.
started to paint the body , i decided to go with 77 mazda k3 sunburst silver metallic
all front panels are done but one fender .
stripped to bare metal , 3 coats of epoxy inside and out . outer 2 coats of high build blocked out with 320 and 3 coats of single stage

panels are not mounted just sitting there so not lined up right

also i sprayed some rattle can black on the bumper to test
but not sure if black or spray body color
what do you think?

http://

http://

http://

http://

http://

Last edited by GFRENCH; 08-22-16 at 08:41 PM.
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Old 08-22-16, 08:33 PM
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sorry for the double post

Last edited by GFRENCH; 08-22-16 at 08:39 PM.
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Old 08-23-16, 03:29 PM
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Nice work, I see the sweet garage set up you have lol. I would go body color on the bumper
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Old 09-17-16, 07:07 PM
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update sept 17
last few weeks i have been busy with ever moment i had working on my ride
taken 58 hours to get her finished painted
here are some new pics

http://

http://

http://

http://

http://

http://

Last edited by GFRENCH; 09-17-16 at 07:19 PM.
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Old 09-17-16, 07:20 PM
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more pics

http://

http://
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Old 10-05-16, 07:48 PM
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as fall is going buy fast i'm really going at the car hard. i have to have the engine in before snow.
it can't stay where it is now.
engine is so close to ready . just waiting for a new oil pump and pan can go on.
so last few nights i been very hard working and i have my mounts all cut ready for welding.
i will be doing the welding tonight



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Old 10-08-16, 06:39 PM
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guys i need your help
started to install the 351 today at 10:30 am now 7:40 pm and not mounted.
there is no way it fits almost like the block mounts are too wide.
are there different sizes?
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Old 10-15-16, 09:19 PM
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ok then never mind the question above
i guess no one cares about this
thanks
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