HOLDEN 383 STROKER

Back in the late 90's when 400 RWHP was all it took to win summer nats horse power hero (boosted). I was assembling this holden 383 stroker, instructions were No bonnet scoop or VN heads. A Perkins four bolt block, high port alloy's and a big nasty solid roller were employed that seen 389 RWHP NA. But living in a rare and very collectable VK Group A/3 meant long storage spells, dry rocker shafts and big spring pressures eventually caused rocker trunnion failure, so this time round a different owner and a more friendly hydraulic roller valve train was chosen, lobe separation stayed but duration and lift was shortened, peak Hp will be down 15 to 20 but FtLbs will be up by 20-30.

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#383STROKER #389RWHP #HOLDEN