arp head bolts

[dustya_383]

i ordered my head bolts from a local speed shop and i believe theyre the wrong set. theyre too short does it matter that im using a different set of heads (indy rhs) .. part number on bolt set is 144-3602 on the box it says mopar "A" engine 273-360
my block is 91 which is LA correct???

 

[dartswinger84]

There's no problem with that,most of A and LA parts are interchangeable. That's correct bolt set.

 

[mopardude318]

yes, a 91 block is still an LA block, not a magnum...FWIW, the part number for the ARP bolts that brian sent me for my RHS heads is: 144-3606

 

[dustya_383]

There's no problem with that,most of A and LA parts are interchangeable. That's correct bolt set.

theres 3 different lengths in the set . 2 long 8 medium and 10 short. .its the 8 medium that are too short.

 

[dustya_383]

yes, a 91 block is still an LA block, not a magnum...FWIW, the part number for the ARP bolts that brian sent me for my RHS heads is: 144-3606

thanks i think thats the set i need

 

[mopardude318]

on the bolt kit I got from Brian, there were 2 different lengths, 10 long, 10 short...again, PN for the bolts: 144-3606

 

[dartswinger84]

I have that bolt kit too, but i thnk there was only 2 different lenght bolts.(10 longer and 10 shorter) i think those 10 shortest bolts should install exhaust side of the cylinder head. 5/R and 5/L. And those longer ones should install line, middle of heads........ but if there's three different bolt lenghts in your kit, please let me know that and i can go check my kit.

 

[mopardude318]

yepp ^^

 

[1970Duster]

I would return them and go with a stud kit anyway.

 

[Brian Hafliger]

thanks i think thats the set i need

I tried to sell you the right kit. I also tried to sell you the thinner .030 intake gaskets you'll most likely need when your intake doesn't line up properly.
So you'll need to mill it then (read more $$$).
Brian

 

[comoxian]

Mine are 144-3601, and there is three different lengths.

I'm running the Eddy RPM's, so there are four that are quite long, ten short and six medium. IIRC.

They state that they are for W-2 heads. Maybe that makes a difference?

And I also have a '91 block.

 

[dustya_383]

I tried to sell you the right kit. I also tried to sell you the thinner .030 intake gaskets you'll most likely need when your intake doesn't line up properly.
So you'll need to mill it then (read more $$$).
Brian

Oh yea that's right I wasn't able to buy them at the time cause I was litterally
Broke, if I order from u when can I expect them. .the gaskets as well. . Also for the porting of my intake.would I have to send it to you or can my local machinist do it for me?? Thanks

 

[Brian Hafliger]

Oh yea that's right I wasn't able to buy them at the time cause I was litterally
Broke, if I order from u when can I expect them. .the gaskets as well. . Also for the porting of my intake.would I have to send it to you or can my local machinist do it for me?? Thanks

Port matching is not really neccesary with these heads. You'd have them Tuesday I think.

 

[dustya_383]

Port matching is not really neccesary with these heads. You'd have them Tuesday I think.

Ok. Well when we talked before u said the m1 intake would have to be ported. Like maddart had to do. .which is why I was asking.

 

[Brian Hafliger]

Ok. Well when we talked before u said the m1 intake would have to be ported. Like maddart had to do. .which is why I was asking.

You didn't say which intake you had...if you did just remember I speak to 100 people a day on avg...lol!
Yes that intake needs plenum work! It will respond favorably with the right work.

 

[dustya_383]

You didn't say which intake you had...if you did just remember I speak to 100 people a day on avg...lol!
Yes that intake needs plenum work! It will respond favorably with the right work.

oh alright . .but the intake ports wont need work tho right or will they??

 

[Brian Hafliger]

oh alright . .but the intake ports wont need work tho right or will they??

I have to see the intake...some are good as cast and some are way off even at the flange.

 

[SRT_DSTRHOLC]

get the bolts and intake gaskest from him... he is in IDIO ca like 1hr and 1/2 from me. When I take the duster down here I want him to port my heads... Get the Crosswind airgap or the M1...prolly the crosswind like i have for the reason your mostly a street car and want that low end tq and have him port it too match the heads.... I should have bought the heads from him but went with MRL.

 

[mopardude318]

get the bolts and intake gaskest from him... he is in IDIO ca like 1hr and 1/2 from me. When I take the duster down here I want him to port my heads... Get the Crosswind airgap or the M1...prolly the crosswind like i have for the reason your mostly a street car and want that low end tq and have him port it too match the heads.... I should have bought the heads from him but went with MRL.

Hey buddy, sorry to break it to ya, but Indio is more like 6 hours away from you...lol

 

[dustya_383]

Hey buddy, sorry to break it to ya, but Indio is more like 6 hours away from you...lol

haha he lives in long beach now hahah

 

[dustya_383]

get the bolts and intake gaskest from him... he is in IDIO ca like 1hr and 1/2 from me. When I take the duster down here I want him to port my heads... Get the Crosswind airgap or the M1...prolly the crosswind like i have for the reason your mostly a street car and want that low end tq and have him port it too match the heads.... I should have bought the heads from him but went with MRL.

yea he ported mine. . . im gonna get them from him on friday . . i returned the ones back to goodies matter fact gotta go pick up other set of head dowels right now

 

[Locomotion]

on the bolt kit I got from Brian, there were 2 different lengths, 10 long, 10 short...again, PN for the bolts: 144-3606

Can you double-check the numbers? You may have misread a number.

Everything I've found including the ARP catalog shows:

144-3605 - 318-360 Magnum with factory heads or Edelbrock Magnum heads

145-3606 - 383-400-413-426-440 Wedge


It appears that the Indy/RHS heads, LA-X and MA-X, would take 144-3605 since they are based on the Magnum heads, just machined differently for both applications.

The pic that Summit has is not the "actual" part because it shows 3 different lengths and it should be 2.

 

[dgc333]

I agree the head bolts should be for the magnum and the magnum only use two different lengths.

 

[SRT_DSTRHOLC]

haha he lives in long beach now hahah

ya haha

 

[SRT_DSTRHOLC]

ya you need the magnum head bolts...