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Hi all! I need a Nailhead flexplate for a 12" converter. My 425 flexplate mounts fine to the engine and to the Sp 400 trans. The only issue is I have a Postins 12" converter and not a 13" one. And the flexplate is only drilled for a 13" converter. So if anyone has a flexplate that is...

Hi all! Well the saga of getting the 425 dual quad Nailhead and SP400 trans into the '65 Skylark continues - slowly ,... I've just had the engine and trans built by a buddy. I was about to put it in when I found the Postons torque converter I have doesnt fit the 425 flexplate. So I'm...

Hi all, Does anyone knwo the GM part number for the rear control arm bolts [& nuts] for the '65 Skylark. Or - are they the same as the Chevelle ones? 225 ci V6 auto 10 bolt car if it makes a difference. Sorry I originally posted this in teh body shop section instead of here. Thanks...

Gents, Need to get at the area under the roof and above the rear side window on '65 Skylark 2 door post coupe. I can put my hand through the gap into the car here so need to weld it up. Does anyone know how to get off those inch wide flat satin silver window mouldings without kinking...

Guys, Are the rear springs on a ’65 Skylark pigtailed both ends? I’ve had a look underneath and cannot figure it out. The top looks pigtailed but I’m not sure about the lower end where it sits on the axle cup. I want to reduce the ride height at the rear. Currently I have 3 inches of tyre...

Gents, Continuing the plan to put a posi in my '65 Skylark I checked the rear end gearing ratio yesterday using the old method of leaving one wheel on the ground, jacking up the driver's side and turning the wheel round twice. The driveshaft turned just over 3 times - possibly 3 and one eighth...

Gents, I've got a 1965 Buick Skylark 2 door post sedan with a 225 ci V6, 'Glide and an open axle and want to put a posi in it - mainly becuase a 425 dual quad is going in! So far I think I've identified it as a 10 bolt 8.2 rear but know no more than that. I've seen some Posi unit sellers on...

Hi all, Does anyone know what the weight of a 401/425 head is with all the valves & springs? I need to ship some home to the UK from New York and the airline baggage allowance is 70lbs/ 32 kg per item absolute max. Can anyone help me with a positive ship weight for each head please? best...

Hi Guys, There's some 401 heads on ebay - you may have seen them. Look like builders. About 19 hours to go - anyone need them? best regards NickS

Hi Bob, I see I've been made up to Mechanic - many thanks!! best regards Nick

GUys, A big thanks to all who helped me out with my question 'how much does gas weigh?' so I could load the rear of the car for three quarters of a tank of gas and get the ride heght correct. [I couldn't find the original post! - is there a 'my posts' function here?] I turned out I have...

Hi Guys, Not sure if this is the right place for this post but... Can anyone guide me on a complete replacement of all the suspension bushings under my '65 Skylark? I guess the big question is polyeurethane or rubber? I will go with poly on the sway bar body bushings and end links for sure...

Hi all, Anyone heard of Smitty muflers. Any good? I friend put a set in a 2" dual system under his '67 D*dge Coronet with a 318 in it. Sounded awesome. Very nice burble on idle and a good deep throaty roar on acelleration but not too over the top. [well fairly over the top actually!!]. Doea...

Guys, Some advice please - are all 401/ 425 distributors the same. I think mine is too far gone for a rebuild core so will have to get one off of ebay and send it to the builder. I've heard about ones with and without a window. What is this? I'm told the window is better but don't know why...

Gents, Will a '64 Riviera windshield fit my '65 Skylark 2 door post sedan? it's starting to delanminate - at anything over 60 mph it starts to fog badly round the edges. Kinda dangerous if you think about it!! I have an option on a '64 Riviera windshield for free from my local bodyshop doing a...

Guys , Thanks for all the assistance with the 425 posts. One question - how much does gas weigh? Is it the same or thereabouts as water? The reason I ask is that I want to rest the rear ride height on my '65 Skylark but the rear end is stripped out. To do it propoerly I need to know how much...

Guys , Thanks for all the assistance with the 425 posts. One question - how much does gas weigh? Is it the same or thereabouts as water? The reason I ask is that I want to rest the rear ride height on my '65 Skylark but the rear end is stripped out. To do it propoerly I need to know how...

Gents, Thanks for the all the advice so far. I have a cam lying around that I am not sure what it is. It has part number CWC 135 2241 C4 stamped on one side and on the other side a ‘D’. Any ideas all? Many thanks!

Guys, Are there any differences in the Nailhead distributors? I want to get mine rebuilt with a small body HEI - to fit under the cap - but don't think mine is rebuildable. I've seen a few on eBay I was thinking of buying and seding to the rebuilder - either Carmen or Dave Ray - but do not...

Dear All, Still putting this 425 dual quad together for my '65 Skylark! I plan to start getting into it for real over the Christmas/ New Year period. [Unfortunately child #3 arrived early November, which makes 3 pre-school age so I feel a bit guilty hiding myself away in the garage!] I'm...