polyjohn's latest activity
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polyjohn replied to the thread Who has used a 440 crank in a 383 block?.Some folks are forgetting 'HEADER CLEARANCES HERE'... Most cars have header issues except maybe C-bodys. Low deck engines give around... -
polyjohn replied to the thread WTB 4617 SA Carter wanted please.Yep that's the one, common as muck I hope???:thankyou:
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Hello Mopar folks, Wanted please a 4617 SA carter carb Any help greatly appreciated from PolyJohn
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polyjohn replied to the thread Starts and quits after 15-30 seconds.Bet its the COIL! They say you can run them in start mode, full 13.8 V. BUT NO! they overheat and cut out... 10 VOLTS is plenty...
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polyjohn replied to the thread Think I found why my car's a gutless turd..So we are in 2025, five star Gas is a distant memory and where are we with Compression? We have two choices at the pump now 5% or 10%...
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polyjohn replied to the thread Think I found why my car's a gutless turd..Very impressive times for smog motor compressions indeed! Yep my mates car ran 12.50 with a crane 480 cam and 8.5 to 1 smog pistons...
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polyjohn replied to the thread What to expect from 1970 383 HP.It's good to see someone 'championing' the 383 engine at last! 383 blocks are common in the UK due to thousands of dead Jensen...
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polyjohn replied to the thread What to expect from 1970 383 HP.Back to basics methinks with a 383 engine. The Mopar '516' wedge head was designed for the 361 and 383 engines. It ended up on the...
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polyjohn replied to the thread Post your 10 second combo's.Nice one Kjalltrac! Great looking car and stock looking under the hood. You just need a decent steel crank and trick rods then you...
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Anyone in the know about aluminum 318 Poly heads? Copies of the originals or something trick... Who is going to follow up with trick...
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polyjohn replied to the thread 318 poly rebuild.As with all rebuilds, first 'port of call' is pistons! What's out there and can I afford them? Most custom builds are with custom made...
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polyjohn replied to the thread 318 poly rebuild.My Moparmate in the UK went the 'extra mile' with his 318 Poly. He has a 65 Poly Fury and its now a 402ci Poly-Fury. 4-inch bore and a...
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polyjohn replied to the thread 318 poly rebuild.Old thread revival methinks. The 354 Poly sounds awesome from OZ! Its all about collecting the parts before you start a Poly build...
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polyjohn replied to the thread 318 Poly talk.Reply to 66-SAT, Water is heavy just like the intake manifold on a Poly! So a non water fed manifold, like Big Blocks is preferable. A...
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polyjohn replied to the thread 318 Poly talk.hello Geoff-2, You inbox is full so can you give anymore info on the aluminum heads please? Gary Pavlovich was teaming up with...
